PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $1 |
| PSA 8 | $12.02 |
| PSA 9 | $17.75 |
| PSA 10 | $52.66 |
| BGS 10 | $68 |
| CGC 10 | $179.99 |
| SGC 10 | $32 |
TCGplayer market price: $0.35 (as of 2026-07-05)
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-crystal-guardians/pokemon-crystal-guardians-bill-s-maintenance-71