"Ghost Adventures" star Zak Bagans ain't just chasing ghouls -- the dude's a major sports buff, and has been dropping serious cash on some top-notch sports memorabilia.
The paranormal investigator tells TMZ he splashed a jaw-dropping $160,000 at Goldin Auctions to snag the NBA Rookie of the Year Paolo Banchero Best 1/1 rookie card, which is most definitely a sports collector's dream.
Also, the card is signed by Banchero himself in sleek blue ink -- which undoubtedly increased its monetary value.