Coming in at 196 pieces, the Kai Fighter (70721) is a smaller set that's great for a quick session from the Ninjago lineup. It debuted in 2014 at $19.99. You get 2 minifigures in the box, which adds to the collectible appeal.
The price-per-piece works out to $0.102, which is solid for what you're getting.
It's a straightforward, well-designed set that does what Ninjago does best.
Key Features
196 pieces — Compact and purpose-built — great for a quick session
2 minifigures — Adds play value and aftermarket appeal
$0.102 per piece — Strong price-per-piece for this theme
Rebooted collection — Sought-after corner of the Ninjago lineup
Released 2014 — Ninjago sets from this period are known for their build quality
Investment Analysis
The Kai Fighter (70721) isn't retiring anytime soon, so there's no rush from an investment perspective. Sets tend to appreciate most after they leave shelves, so the real opportunity here is down the road. That said, let's look at what it's got going for it.
Overall, the investment outlook is modest but worth tracking.
Key factors to consider:
Price-per-piece of $0.102 sits in a good range
At $19.99 retail, the best strategy is to watch for sales and stock up at a discount. Ninjago performs well on the aftermarket, and the Kai Fighter has the right ingredients.
Theme Background
The Kai Fighter falls under the LEGO Ninjago theme, sitting in the Rebooted subtheme — one of LEGO's most established and popular product lines. Launched in 2014 at $19.99, it sits in the accessible end of Ninjago. The $0.102 per piece is in line with Ninjago averages.
The Rebooted 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
This is a standard release in the Ninjago lineup without standout collector characteristics based on current data.
Frequently Asked Questions
[{"q": "How many pieces are in the LEGO Kai Fighter (70721)?", "a": "The LEGO Kai Fighter (70721) contains 196 pieces, making it a smaller set."}, {"q": "What minifigures come with the LEGO Kai Fighter (70721)?", "a": "The LEGO Kai Fighter (70721) 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 Fighter (70721) cost?", "a": "The retail price (MSRP) for the LEGO Kai Fighter (70721) is $19.99 in the United States. Regional pricing is \u00a317.99 in the UK, CA$24.99 in Canada. This works out to $0.10 per piece. This is a competitive price-per-piece for the Ninjago theme, offering a good balance of piece count and build quality for the price."}, {"q": "Is the LEGO Kai Fighter (70721) a good investment?", "a": "The LEGO Kai Fighter (70721) shows moderate investment potential based on several factors. 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 Fighter (70721) suitable for?", "a": "The LEGO Kai Fighter (70721) is recommended for ages 8\u201314. The build is designed to be approachable for younger builders while still providing an enjoyable experience."}, {"q": "How big is the LEGO Kai Fighter (70721)?", "a": "The LEGO Kai Fighter (70721) measures approximately 26.19cm \u00d7 19.1cm \u00d7 6.1cm (W\u00d7H\u00d7D) and weighs 0.35kg. It makes for a great display piece that won't take up too much shelf space."}, {"q": "Where can I buy the LEGO Kai Fighter (70721)?", "a": "The LEGO Kai Fighter (70721) is available from major retailers including Amazon, Walmart, Target, and LEGO.com. Use the BrickBucks deal tracker to find current discounts and the best price available right now."}]
