PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $5.85 |
| PSA 8 | $22.08 |
| PSA 9 | $24 |
| PSA 10 | $110 |
| BGS 10 | $143 |
| CGC 10 | $66 |
| SGC 10 | $66 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-2004-topps-advanced-challenge/pokemon-2004-topps-advanced-challenge-regirock-56