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About Computer Error

Computer Error is card 16 from the WOTC Promo set.

The current TCGPlayer market price is $7.07. A PSA 10 (Gem Mint) copy recently averaged $227.11 — about 32.1× the ungraded price, showing how much professional grading can add to Computer Error's value.

PokiFrame aggregates this data from TCGPlayer, CardMarket, and eBay so you can confirm Computer Error's value before you buy, sell, or trade.

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Computer Error — common questions

How much is Computer Error worth?: Computer Error from WOTC Promo has a market price of $7.07 for an ungraded copy, based on current TCGPlayer and eBay sales data. Condition, print variant and grading all move that number.
What is a PSA 10 Computer Error worth?: Recent PSA 10 (Gem Mint) sales of Computer Error averaged $227.11, about 32.1× the ungraded price. A PSA 9 averaged $37.67.