Most Valuable LEGO Ideas Sets
The Ideas LEGO sets worth the most on the secondary market, ranked by real eBay sold prices. The The Orient Express Train leads at a sealed median of $492. Each links to its full Sealed / Used / Incomplete breakdown.
Most valuable Ideas sets by sold price
| # | Set | Year | Sold median | RRP | vs RRP |
|---|---|---|---|---|---|
| 1 |  The Orient Express Train #21344 | 2023 | $492 | $300 | +64% |
| 2 |  Pirates of Barracuda Bay #21322 | 2020 | $380 | $200 | +90% |
| 3 |  Dungeons & Dragons: Red Dragon's Tale #21348 | 2024 | $339 | $360 | +-6% |
| 4 |  Grand Piano #21323 | 2020 | $331 | $400 | +-17% |
| 5 |  The Botanical Garden #21353 | 2024 | $326 | $330 | +-1% |
| 6 |  The Globe #21332 | 2022 | $294 | $230 | +28% |
| 7 |  NASA Apollo Saturn V #21309 | 2017 | $281 | $120 | +134% |
| 8 |  Home Alone #21330 | 2021 | $270 | $250 | +8% |
| 9 |  Tree House #21318 | 2019 | $225 | $200 | +13% |
| 10 |  International Space Station #21321 | 2020 | $177 | — | — |
| 11 |  Ghostbusters Ecto-1 #21108 | 2014 | $166 | — | — |
| 12 |  The DeLorean Time Machine #21103 | 2013 | $96 | — | — |
RRP = recommended retail price, the set’s original launch price (US MSRP). “vs RRP” is how much the current sold price has gained over it. A few older sets show “—” because LEGO didn’t publish a retail price we can source for them (typically pre-2007) — their value is still ranked by real sold price.
Why Ideas sets hold their value
Ideas is one of the most collected LEGO themes, and 9 of the 12 we track here are already retired — once production stops, the fixed supply meets steady demand and prices climb. Licensed and large display sets in the theme appreciate most, especially sealed. Every figure here is the median of real eBay completed sales, so it reflects what the theme’s sets actually trade for, not asking prices.
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How to value your set
Use the lookup tool for your exact Ideas set — it returns the Sealed / Used / Incomplete medians, the seller’s net after eBay fees, and the recent real sales behind the number. For the biggest gainers across all themes, see rare LEGO sets; for the overall leaderboard, the most valuable LEGO sets.