How much is a PSA 8 Misty's Tentacruel #10 worth?
The PSA 8 Misty's Tentacruel #10 from Gym Heroes (English) has a median market value of $123, with recent sales ranging $110 to $165 — based on 9 recent graded sales.
Is a PSA 8 Misty's Tentacruel #10 worth more than ungraded?
Yes. A PSA 8 copy has a median value of $123 versus about $94.99 ungraded — roughly a 1.3× premium for the PSA 8 grade.
Where do PokéTT's PSA 8 prices come from?
PokéTT tracks real graded sales across eBay, Yahoo Auctions and Mercari, then shows the median within the PSA 8 grade — not a single outlier sale — so the mark reflects the true market.