Pokemon TCG has one of the biggest ROI
- Mimikyu 2018 Japanese Promo PSA 10 was $215 in 2019, now it goes for ~$20k
- Mario Pikachu PSA 10 was ~$211 in 2019, now it sells for ~$29k
- Poncho boxes were $350 in 2019, now two of them combined sell for ~$40k
Who will it be next?
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