Goop Gas Attack #78
Pokemon Team Rocket · #78 · Base · Apr 2000
Maybe — Proceed with Caution
Should You Grade?
Raw Price
$1.06
Expected Value
$-2.51
Net Profit
$18.93
Gem Rate
14.9%
ROI
+118%
Sales / Yr
142
Negative expected value ($-2.51) — while a PSA 10 would be profitable, the probability-weighted outcome across all grades means you lose money on average at this grading tier. The gem rate is only 15% — you'll need a very clean copy to hit PSA 10. PSA 10 profit of $18.93 is thin — grading fees and selling costs eat most of the margin.
Best Tier for Flipping
Factors in grading cost, turnaround time, and compounding — how fast you can reinvest profits into the next flip.
Profitability by Grading Company
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
$1.06
BGS 10
$55.00
PSA 10
$42.42
CGC 10
$34.99
SGC 10
$25.00
BGS 9.5
$12.00
9
$10.94
8
$10.39
7
$8.00
14.9%Gem Rate (PSA 10)
Grade Distribution (121 total graded)
121Total
PSA 101814.9%
PSA 96452.9%
PSA 82218.2%
PSA 797.4%
Below 775.8%