With 217 pieces, the LEGO Kai's Mech Jet (71707) is a smaller set that's great for a quick session. It launched in 2020 under the Ninjago banner at $19.99. You get 2 minifigures in the box, which adds to the collectible appeal.
The price-per-piece works out to $0.092, which is solid for what you're getting.
It's a straightforward, well-designed set that does what Ninjago does best.
Key Features
217 pieces — Compact and purpose-built — great for a quick session
2 minifigures — Adds play value and aftermarket appeal
$0.092 per piece — Strong price-per-piece for this theme
Prime Empire collection — Sought-after corner of the Ninjago lineup
Released 2020 — Ninjago sets from this period are known for their build quality
Theme Background
The Kai's Mech Jet falls under the LEGO Ninjago theme, sitting in the Prime Empire subtheme — one of LEGO's most established and popular product lines. Launched in 2020 at $19.99, it sits in the accessible end of Ninjago. At $0.092 per piece, it punches above its weight on value.
The Prime Empire subcategory within Ninjago has its own collector base, and sets in this range tend to hold interest well after retirement. Worth keeping on the radar if you're building a Ninjago collection.
Why This Set Is Special
220% above retail. Now trading at $63.95, up 220% from $19.99 RRP — a 29% annualized return over 4.6 years since retirement.
Strong part-out value at 1.7x — Parts are worth $34.43 vs $19.99 retail (1.7x ratio). Theme average is 2.0x.
Frequently Asked Questions
[{"q": "How many pieces are in the LEGO Kai's Mech Jet (71707)?", "a": "The LEGO Kai's Mech Jet (71707) contains 217 pieces, making it a smaller set."}, {"q": "What minifigures come with the LEGO Kai's Mech Jet (71707)?", "a": "The LEGO Kai's Mech Jet (71707) includes 2 minifigures. Minifigures are a key value driver for LEGO sets \u2014 exclusive or rare minifigures can appreciate significantly in value on their own, sometimes commanding high prices on the secondary market."}, {"q": "How much does the LEGO Kai's Mech Jet (71707) cost?", "a": "The retail price (MSRP) for the LEGO Kai's Mech Jet (71707) is $19.99 in the United States. Regional pricing is \u00a317.99 in the UK, CA$24.99 in Canada, \u20ac19.99 in Europe. This works out to $0.09 per piece. That places it in the top 25% of Ninjago sets for value \u2014 you get a lot of pieces for the price you pay."}, {"q": "Is the LEGO Kai's Mech Jet (71707) a good investment?", "a": "The LEGO Kai's Mech Jet (71707) shows moderate investment potential based on several factors. Key investment signals include: excellent price-per-piece value. Ninjago sets have historically been among the best-performing themes for post-retirement appreciation. As with any LEGO investment, buying at or below retail price maximizes potential returns. Use the BrickBucks price tracker to find the best entry point."}, {"q": "What age is the LEGO Kai's Mech Jet (71707) suitable for?", "a": "The LEGO Kai's Mech Jet (71707) is recommended for ages 7+. The build is designed to be approachable for younger builders while still providing an enjoyable experience."}, {"q": "How big is the LEGO Kai's Mech Jet (71707)?", "a": "The LEGO Kai's Mech Jet (71707) measures approximately 26.2cm \u00d7 19.1cm \u00d7 4.6cm (W\u00d7H\u00d7D) and weighs 0.36kg. It makes for a great display piece that won't take up too much shelf space."}, {"q": "Is the LEGO Kai's Mech Jet (71707) still available?", "a": "The LEGO Kai's Mech Jet (71707) retired on July 31, 2021 and is no longer available at retail. You can find this set on secondary markets including Amazon, eBay, and BrickLink. Retired Ninjago sets often trade at a premium above their original retail price, with demand typically increasing over time as sealed inventory decreases."}, {"q": "Where can I buy the LEGO Kai's Mech Jet (71707)?", "a": "The LEGO Kai's Mech Jet (71707) is retired and only available on secondary markets. Check Amazon, eBay, and BrickLink for current listings. Use the BrickBucks price tracker to compare prices across retailers and find the best deal."}]
