expensive in-game item you ever bought? Fortnite not included

Not me personally, but my Uncle one bought this pack for an unreleased game that cost 2000 Pounds (2571.80 USD), he got early access and a bunch of stuff for it, I wouldn't say it was worth it personally but he's got a lot of cash.

Euro Truck Simulator 2 + all DLC. And i bought all this when sales were over.

I bought a $400 butterfly knife in csgo. Only to gamble and lose :((

I bought about 6 Megalodon Shark cards ($600 USD) on GTA V when it first added to the game, then my xbox account got hacked.