How much is a PSA 10 Rocket's Mewtwo #14 worth?
The PSA 10 Rocket's Mewtwo #14 from Gym Challenge (English) has a median market value of $8,200, with recent sales ranging $7,600 to $10,322 — based on 3 recent graded sales.
Is a PSA 10 Rocket's Mewtwo #14 worth more than ungraded?
Yes. A PSA 10 copy has a median value of $8,200 versus about $322 ungraded — roughly a 25× premium for the PSA 10 grade.
Where do PokéTT's PSA 10 prices come from?
PokéTT tracks real graded sales across eBay, Yahoo Auctions and Mercari, then shows the median within the PSA 10 grade — not a single outlier sale — so the mark reflects the true market.