![Thundurus [Pokemon Center] #209](https://storage.googleapis.com/images.pricecharting.com/xbhl5742yddza4sg/1600.jpg)
Pokemon Promo · #209 · Jul 1999
Should You Grade?
This card has strong grading potential — $25.60 profit if PSA 10 with a 43% gem rate and 493 annual sales. The market is liquid enough to sell quickly.
Factors in grading cost, turnaround time, and compounding — how fast you can reinvest profits into the next flip.
Shows the best-value tier from each grading company based on EV, cost, and turnaround. Pop = total graded population; 10s = grade 10 count.