When PSA 10s are more common (larger population), the premium for a PSA 10 over a PSA 9 is typically smaller
The Special Illustration Rare version has a Market Value of $358, leagues above the next most valuable card of the Special Illustration Rare Perrin at around $105
That's 10% off its usual $94.46 price, saving you $9.03 on a sealed display shipped and sold by Amazon
Knowing the difference is pretty important
Japanese cards are also often cheaper in the Western world due to a higher demand for English cards in those markets
Like most One Piece TCG cards, the value of Kuina depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Starter Deck 12: Zoro and Sanji)