PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $0.25 |
| PSA 9 | $14.99 |
| PSA 10 | $32.06 |
| BGS 10 | $42 |
| CGC 10 | $19 |
| SGC 10 | $19 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-steam-siege/pokemon-steam-siege-ninja-boy-103