Well.. because it's BO so why not!
What cards will be dropping like rocks once people figure out these guys aren't going to be the next bball global and cultural phenom, or once it's realized that these cards aren't really all that rare?
People are paying tens of thousands of dollars for pink pulsar radar sparkle color blast parallels of new talent with zero current accolades. At current prices most of these guys will pretty much have to be a better version of Jordan than Jordan himself (along with massive cultural and global recognition) for these prices to make any kind of sense IMHO. But yet every year we see people paying thousands for unproven talent that will inevitably be worth less shortly down the road.
For reference, here's a few names people were paying top dollar for during their hype phase that didn't turn out to be Jordan after all.. Darius Miles, Blake Griffin, Anthony Bennett, Andrew Wiggins, Ben Simmons. A few of those guys are why I stopped buying rookies during the initial hype. Yes, i've been burned plenty of times myself, i'm not preaching from some pedestal here.
Here are a couple picks from me.. Let me know what card you saw sell recently for a ridiculous price that you just shook your head at.