Portion of the people selling on KSL are "scalpers." They buy up multiple tickets at the beginning of the year and try to turn a profit. Some are actual fans who use the proceeds of the tickets to essentially pay off their season of going themselves.

The guy I bought my tickets from for the ISU game has like 3 separate sets of tickets. One set of at least 10 tickets. He's definitely not just selling off like his family's tickets or something. It's clear that it's a strategy. I know he is an actual fan that goes to the games, though, because I ran across him on Twitter (knew his name from the Venmo transaction). Heck, he's probably on here.