premium price; scalper price; marked-up price
Colloquial term used in collector, hobby, and resale communities for an item priced above its original retail value due to scarcity or demand.
The limited-edition figure has been selling at a premium price right after its release.
If I have to pay a scalper price, I'd rather wait for a restock.
Abbreviation of プレミアム (premium) + 値 (price). The exact origin is uncertain, but it likely emerged in Japanese collector and online marketplace slang.