This is one of those instances where because 10’s are so scarce (extremely tough card to grade), that they can go for significantly more than a PSA 9. They have been known to sell in the $400-$500 range in some instances, while one went at auction for less than $100. Seems like prices are all over the map, at least according to last year’s sales (details in below thread). There’s one up on Ebay in the $300 price range, and I’d be curious to see what it eventually sells for.
www.elitefourum.com/t/prerelease-aerodactyl-psa-10-1st-edition-gold-stamp/16095/1