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The maths doesn't work on Blastoise from Pokémon GO right now. At $1.94 raw against $39.95 for a PSA 10, that works out to -57% ROG. Hold it raw and watch for the graded price to move.
Among the 51 cards in Pokémon GO with PSA 10 sale data, Blastoise ranks 38th for Return on Grading and 37th by PSA 10 price. Of the 12 Rare Holo cards with PSA 10 sales, it is 9th for Return on Grading. The median PSA 10 in this set sells for $59.99. 7 of the 51 clear a 100% Return on Grading.
