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Mewtwo [Game Boy] #150

Mewtwo [Game Boy] #150

Pokemon Japanese Promo · #150 · Aug 1997

Buy Raw on eBayPSA 10 Sold on eBay
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No — Not Worth Grading

Should You Grade?

Raw Price
$710.79
Expected Value
$340.87
Net Profit
$-411.79
Gem Rate
8.3%
ROI
-57%
Sales / Yr
259

Even a PSA 10 would lose $411.79 after the $15.00 grading cost and selling fees. The graded value doesn't justify the investment.

Best Tier for Flipping

TAG Basic$22.00/card · 30+ business days
Net Profit $42.50
Per-Flip ROI 127%
Annualized 2,340%
Unlock with Pro →

Factors in grading cost, turnaround time, and compounding — how fast you can reinvest profits into the next flip.

Profitability by Grading Company

CompanyBest TierGem RatePop10sCostEVNet ProfitROI
PSAPSA Standard52.3%8,4201,250$20.00$85.40$32.50127%
BGSBGS Standard52.3%8,4201,250$20.00$85.40$32.50127%
CGCCGC Standard52.3%8,4201,250$20.00$85.40$32.50127%
SGCSGC Standard52.3%8,4201,250$20.00$85.40$32.50127%
TAGTAG Standard52.3%8,4201,250$20.00$85.40$32.50127%
Compare All Companies with Pro →

Shows the best-value tier from each grading company based on EV, cost, and turnaround. Pop = total graded population; 10s = grade 10 count.

Price by Grade

Raw
$710.79
BGS 10
$7,515.00
PSA 10
$5,780.39
SGC 10
$3,468.00
9
$1,431.25
8
$1,077.50
7
$998.99
BGS 9.5
$716.00
CGC 10
$314.00
View Sold PSA 10 Prices on PriceCharting →View Grading Data on GemRate →
0%100%
8.3%Gem Rate (PSA 10)

Grade Distribution (2,135 total graded)

2,135Total
PSA 101778.3%
PSA 964530.2%
PSA 876235.7%
PSA 729814.0%
Below 723811.1%
© 2026 Should You Grade? Data from PriceCharting & GemRate.
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