PC Full Art Zekrom #115 LT PSA 10

Was lucky enough to get a PSA 10 on this card recently, but there doesn’t seem to be any sales data. All the ones on Ebay are $1500-$1800, which seems insanely high, considering PSA 9 are selling for around $100.

About 6 months ago a pair of psa 10’s Zekrom & Reshiram went for £630
2 months ago a Reshiram psa 10 sold for £230 but not seen any zekroms recently