Snapshot
- vs RRP
- +78% over
- Per piece
- 48¢
Value per piece
cost per part at each reference
48¢lowest market value
Reference
MSRP38¢
Used market48¢
New market67¢
Where to buy new
- Walmartout of stock$950.00
New at retail · MSRP $359.99 · via BrickPicker
Set Retired
Robot Inventor
- Reference
- 51515-1
- Theme
- Mindstorms
- Year
- 2020
- Parts
- 949
Robot Inventor is a LEGO set from the LEGO Mindstorms theme released in 2020. The set contains 949 parts.
New avg$639.00Used avg$457.60MSRP$359.99
Avg. 3rd-party market prices via BrickPicker, not CollectORbuild seller prices
Value historytracking since Jul 28, 2026
Currently $639.00 new. We just started tracking this set’s value. The chart fills in as prices are re-checked over the coming weeks.
