How much is a PSA 5 Venusaur #18 worth?
The PSA 5 Venusaur #18 from Base Set 2 (English) has a median market value of $245, with recent sales ranging $74.99 to $416 — based on 2 recent graded sales.
Is a PSA 5 Venusaur #18 worth more than ungraded?
Yes. A PSA 5 copy has a median value of $245 versus about $54.99 ungraded — roughly a 4.5× premium for the PSA 5 grade.
Where do PokéTT's PSA 5 prices come from?
PokéTT tracks real graded sales across eBay, Yahoo Auctions and Mercari, then shows the median within the PSA 5 grade — not a single outlier sale — so the mark reflects the true market.