10 LEGO Avengers Sets With the Biggest Price Growth
Category: series-roundup
By BrickBucks Team
4 min read
The 10 LEGO Avengers sets with the biggest price growth — $389.90 at retail, now $1,573.63, up 304% combined — ranked by price growth, with live prices.
These are the ten LEGO Avengers sets that have grown the most in value since they were on shelves — ranked by price growth against their retail price, not by size or by how much money they make in dollars. Together the ten cost $389.90 at retail. At current market prices they are worth $1,573.63 — up 304% combined, across 3,877 pieces and 27 minifigures. Every one of them is retired.
A note on the numbers, because it matters: growth here means (current market price minus retail price) divided by retail price. It is not ROI. Real ROI needs what you actually paid — many of these were bought below retail on discount — plus marketplace fees, shipping and tax, and none of that is shown here. Prices are the Amazon 7-day market price, checked November 12, 2026, and the table below shows the live picture. The table column is labelled ROI; the words in this article say growth, because that is what the numbers actually are.
Three sets define the list. Captain America Mech Armor (76168) leads at +486% — a $9.99 set from 2021, 121 pieces, now selling around $58.59. Captain America Jet Pursuit (76076) is second at +437% — $19.99 in 2017, now around $107.31. And Iron Man: Detroit Steel Strikes (76077) is third at +386% — $29.99 in 2017, 377 pieces, now around $145.63. The pattern is the story: the biggest growers are small, cheap sets, not the big display pieces.
Five of the ten cost $9.99 to $19.99 at retail — three of them are $9.99 mech armors (Captain America, Iron Man and Thor) — and all five have more than tripled. The biggest dollar gains sit elsewhere: Avengers Tower Battle (76166) is up $260.00, Sanctum Sanctorum Showdown (76108) up $256.45, and the Nano Gauntlet (76223) up $190.00. Growth in percent and growth in dollars are different things, and a $9.99 set that triples is still a $35 gain. One caution: Tower Battle is $349.99 on Amazon but $99.88 on Walmart, checked November 12, 2026, so treat its +289% with more care than the rest — the ranking uses the Amazon figure, consistent with the other nine.
The rest of the ten: Iron Man Mech (76140, +350%), Thor Mech Armor (76169, +350%), Corvus Glaive Thresher Attack (76103, +323%), Nano Gauntlet (76223, +271%), Thanos Mech (76141, +268%) and Sanctum Sanctorum Showdown (76108, +256%). Two sets that would have ranked 6th and 7th — Tanker Truck Takedown (76067) and Avenjet Space Mission (76049), both around +333% — are left out because their prices have not refreshed since May 2026. The table below lists the same ten sets with live pricing and retirement status, sorted by growth, highest first.
LEGO sets in this roundup
| Set | Year | Pieces | Retail price | Market price | ROI | Status |
|---|---|---|---|---|---|---|
| Captain America Mech Armor (76168) | 2021 | 121 | $9.99 | $58.59 | +486.5% | retired |
| Captain America Jet Pursuit (76076) | 2017 | 160 | $19.99 | $107.31 | +436.8% | retired |
| Iron Man: Detroit Steel Strikes (76077) | 2017 | 377 | $29.99 | $145.63 | +385.6% | retired |
| Iron Man Mech (76140) | 2020 | 148 | $9.99 | $44.99 | +350.4% | retired |
| Thor Mech Armor (76169) | 2021 | 139 | $9.99 | $44.95 | +349.9% | retired |
| Corvus Glaive Thresher Attack (76103) | 2018 | 416 | $39.99 | $168.99 | +322.6% | retired |
| Avengers Tower Battle (76166) | 2020 | 685 | $89.99 | $349.99 | +288.9% | retired |
| Nano Gauntlet (76223) | 2022 | 675 | $69.99 | $259.99 | +271.5% | retired |
| Thanos Mech (76141) | 2020 | 152 | $9.99 | $36.75 | +267.9% | retired |
| Sanctum Sanctorum Showdown (76108) | 2018 | 1004 | $99.99 | $356.44 | +256.5% | retired |
Captain America Mech Armor (76168)
The LEGO Captain America Mech Armor (76168) is a bite-sized build, clocking in at 121 pieces. Released in 2021 as part of the Marvel Super Heroes Avengers collection, it retails for $9.99. It comes packed with 1 minifig — always a nice bonus for collectors.
At $0.083 per piece, the value here is reasonable — right in line with what you'd expect from Marvel Super Heroes.
The Marvel Super Heroes license gives the Captain America Mech Armor a built-in audience — something that often shows up in aftermarket pricing once production stops.
Captain America Jet Pursuit (76076)
Coming in at 160 pieces, the Captain America Jet Pursuit (76076) is a smaller set that's great for a quick session from the Marvel Super Heroes lineup. It debuted in 2017 at $19.99. You get 3 minifigures in the box, which adds to the collectible appeal.
At $0.125 per piece, it runs a bit higher — but that often reflects larger or more specialized elements.
Licensed Marvel Super Heroes sets like this tend to attract both LEGO fans and franchise enthusiasts, which keeps demand high even after retirement.
Iron Man: Detroit Steel Strikes (76077)
Coming in at 377 pieces, the Iron Man: Detroit Steel Strikes (76077) is a fun, focused build from the Marvel Super Heroes lineup. It debuted in 2017 at $29.99. It comes packed with 3 minifigs — always a nice bonus for collectors.
At $0.080 per piece, the value here is reasonable — right in line with what you'd expect from Marvel Super Heroes.
The Marvel Super Heroes license gives the Iron Man: Detroit Steel Strikes a built-in audience — something that often shows up in aftermarket pricing once production stops.
Iron Man Mech (76140)
With 148 pieces, the LEGO Iron Man Mech (76140) is a smaller set that's great for a quick session. It launched in 2020 under the Marvel Super Heroes banner at $9.99. You get 1 minifigure in the box, which adds to the collectible appeal.
At $0.068 per piece, you're getting excellent bang for your buck here.
Licensed Marvel Super Heroes sets like this tend to attract both LEGO fans and franchise enthusiasts, which keeps demand high even after retirement.
Thor Mech Armor (76169)
Coming in at 139 pieces, the Thor Mech Armor (76169) is a bite-sized build from the Marvel Super Heroes lineup. It debuted in 2021 at $9.99. It comes packed with 1 minifig — always a nice bonus for collectors.
The price-per-piece lands at $0.072 — that's really strong value.
The Marvel Super Heroes license gives the Thor Mech Armor a built-in audience — something that often shows up in aftermarket pricing once production stops.
Corvus Glaive Thresher Attack (76103)
LEGO dropped the Corvus Glaive Thresher Attack (76103) in 2018 as part of the Marvel Super Heroes Avengers: Infinity War collection — a fun, focused build at 416 pieces with a retail price of $39.99. It comes packed with 5 minifigs — always a nice bonus for collectors.
At $0.096 per piece, the value here is reasonable — right in line with what you'd expect from Marvel Super Heroes.
The Marvel Super Heroes license gives the Corvus Glaive Thresher Attack a built-in audience — something that often shows up in aftermarket pricing once production stops.
Avengers Tower Battle (76166)
Coming in at 685 pieces, the Avengers Tower Battle (76166) is a fun, focused build from the Marvel Super Heroes lineup. It debuted in 2020 at $89.99. It comes packed with 7 minifigs — always a nice bonus for collectors.
The $0.131 per piece price point is on the premium side, though the build quality matches.
The Marvel Super Heroes license gives the Avengers Tower Battle a built-in audience — something that often shows up in aftermarket pricing once production stops.
Nano Gauntlet (76223)
LEGO dropped the Nano Gauntlet (76223) in 2022 as part of the Marvel Super Heroes Avengers: Endgame collection — a fun, focused build at 675 pieces with a retail price of $69.99.
At $0.104 per piece, the value here is reasonable — right in line with what you'd expect from Marvel Super Heroes.
The Marvel Super Heroes license gives the Nano Gauntlet a built-in audience — something that often shows up in aftermarket pricing once production stops.
Thanos Mech (76141)
Coming in at 152 pieces, the Thanos Mech (76141) is a smaller set that's great for a quick session from the Marvel Super Heroes lineup. It debuted in 2020 at $9.99. You get 1 minifigure in the box, which adds to the collectible appeal.
At $0.066 per piece, you're getting excellent bang for your buck here.
Licensed Marvel Super Heroes sets like this tend to attract both LEGO fans and franchise enthusiasts, which keeps demand high even after retirement.
Sanctum Sanctorum Showdown (76108)
With 1,004 pieces, the LEGO Sanctum Sanctorum Showdown (76108) is a mid-range build with plenty to enjoy. It launched in 2018 under the Marvel Super Heroes banner at $99.99. The set includes 5 minifigures, adding play and display value.
You're looking at $0.100 per piece, which holds up well against other Marvel Super Heroes sets.
Between the Marvel Super Heroes branding and the build itself, the Sanctum Sanctorum Showdown has the kind of dual appeal that collectors look for.
The lesson across the ten is the opposite of the largest-sets list: size did not drive growth. The three $9.99 mech armors — Captain America (76168), Iron Man (76140) and Thor (76169) — are all in the top five, and the two oldest sets on the list, from 2017, are second and third. Small sets retired quickly, sold in huge numbers, and then became hard to find sealed. The big display pieces grew too — Sanctum Showdown (76108) is up $256.45 and the Nano Gauntlet (76223) up $190.00 — but in percentage terms they sit at the bottom of this top 10, not the top.
None of the ten can still be bought at retail, so none of this is a buy-at-retail tip — it is a picture of what already happened, and a reminder that the sets growing fastest right now are the cheap ones retiring soonest. The Avengers sets still on shelves are a different list: the Iron Man Mech vs. Ultron (76307, $14.99) and Captain America vs. Thanos (76319, $39.99) both retire at the end of 2026. One honest note: this is a fixed top 10 as of November 2026, and the growth figures in this text are that snapshot — the table above is live, and it is the number to check before you buy. For the same ten sets ranked by size instead, see the 10 largest Avengers sets, and for the film-by-film view, the Endgame sets have their own roundup.
Frequently asked questions
Which LEGO Avengers set has grown the most in price?
By price growth against its retail price, Captain America Mech Armor (76168): $9.99 at retail in 2021, now selling around $58.59 — up 486%, checked November 12, 2026. By dollars gained, Avengers Tower Battle (76166) is up the most, $260.00 ($89.99 → $349.99 on Amazon — though Walmart lists it at $99.88, so treat that figure with caution). By current market price alone, Sanctum Sanctorum Showdown (76108) leads at around $356.44.
Is this ROI?
No. Growth here is (current market price minus retail price) divided by retail price. Real ROI would need what you actually paid, plus marketplace fees, shipping and tax — none of which are shown. Many of these sets were bought below retail on discount, which would make a real return higher; fees and shipping would pull it the other way. The table column is labelled ROI; this article says growth, because that is what the numbers are.
Why are the top sets so cheap?
Five of the ten cost $9.99 to $19.99 at retail, and three are $9.99 mech armors. Small sets retire fast, sell in large numbers, and then become hard to find sealed — and a $9.99 set only needs to reach $45 to have grown 350%. The same maths works against big sets: a $499.99 set needs to reach $1,750 to grow the same percentage.
Can I still buy any of these at retail?
No. All ten are retired. The Avengers sets still on shelves are a different list — Iron Man Mech vs. Ultron (76307, $14.99) and Captain America vs. Thanos (76319, $39.99) both retire at the end of 2026, and the S.H.I.E.L.D. Helicarrier (76354, $399.99) retires at the end of 2027.
How many LEGO Avengers sets are there?
86 retail sets across the six Avengers subthemes as counted on November 12, 2026: Avengers (31), Avengers: Endgame (16), Avengers: Age of Ultron (15), The Avengers (10), Avengers: Infinity War (9) and Captain America: Civil War (5). This top 10 also checked the Avengers sets filed elsewhere — the Tower, the Shield, the Helicarrier and the Iron Man Mark 3 bust — and none of them grows fast enough to make the list.
Why aren't Tanker Truck Takedown and Avenjet Space Mission on the list?
They would have ranked 6th and 7th on growth, both around +333% (Tanker Truck Takedown, 76067, $29.99 → $129.99; Avenjet Space Mission, 76049, $59.99 → $259.97). But their market prices have not refreshed since May 2026, so those figures are stale and they were left out until they are re-checked.
Why isn't the micro Avengers Tower on the list?
The micro Tower (40334, 211 pieces) has grown 286% ($19.99 → $77.18), which would put it 8th. It is a LEGO-exclusive micro build, not a standard retail set, so it is out of this ranking — the same retail-only scoping used for the largest-sets list.
Will there be LEGO sets for the new Avengers: Doomsday movie?
LEGO has made sets for every Avengers film so far, each under its own subtheme — Doomsday sets will appear under their own subtheme as they're announced. The first ones are already listed: the Doomsday Quinjet (76347), Epic Battle: Avengers: Doomsday (76348) and the New Avengers Tower (76352). This article covers sets released through November 2026.