LEGO Robot Inventor 51515-1
LEGO Robot Inventor (51515-1) is worth about $701 on the secondary market today, against a $360 retail price. It has 949 pieces, belongs to the MINDSTORMS® theme and was released in 2020. This set has retired — LEGO no longer produces it, so supply is fixed and prices are set entirely by the resale
Build, code and play with Robot Inventor
- Set number
- 51515-1
- Theme
- MINDSTORMS®
- Subtheme
- Robot Inventor
- Year
- 2020
- Pieces
- 949
- Minifigures
- 0
- RRP
- $360
- Market value
- $701
- Used value
- $387
- Released
- 2020
- Retirement
- Retired in 2023
Frequently asked questions
How much is LEGO Robot Inventor (51515-1) worth?
LEGO Robot Inventor is worth approximately $701 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Robot Inventor retired?
Yes — Robot Inventor (51515-1) has been retired by LEGO and is no longer in production. Retired sets have fixed supply, which is why their prices are driven purely by the resale market.
Has LEGO Robot Inventor gone up in value?
Yes. Robot Inventor launched at $360 and now trades around $701, an increase of 94.8%. See the price history chart for how it got there.
What is the price per piece for Robot Inventor?
At its $360 retail price across 949 pieces, Robot Inventor works out to about $0.379 per piece. Collectors often use price per piece to judge whether a set is good value.
Is LEGO Robot Inventor a good investment?
Robot Inventor currently trades 94.8% above its $360 retail price, and it is retired, so no new supply is entering the market. Past performance is not a prediction — condition, packaging and how long you hold all affect what a set actually sells for. BrickStats reports the numbers rather than giving investment advice.
Why is LEGO Robot Inventor so expensive?
Robot Inventor was released in 2020 and has since retired. Once LEGO stops producing a set, the only supply is what is already in circulation, so sealed copies in good condition compete for a shrinking pool of stock. That scarcity, not the parts, is what moves the price.