How much is a PSA 4 Pretend Boss Pikachu #191 worth?
The PSA 4 Pretend Boss Pikachu #191 from SM-P Promotional Cards (Japanese) has a median market value of $601, with recent sales ranging $601 to $601 — based on 1 recent graded sale.
Is a PSA 4 Pretend Boss Pikachu #191 worth more than ungraded?
Yes. A PSA 4 copy has a median value of $601 versus about $594 ungraded — roughly a 1.0× premium for the PSA 4 grade.
Where do PokéTT's PSA 4 prices come from?
PokéTT tracks real graded sales across eBay, Yahoo Auctions and Mercari, then shows the median within the PSA 4 grade — not a single outlier sale — so the mark reflects the true market.