I've heard that it's a bit more sophisticated than that.
Supposedly a lot of the top-tier prices on things without an established market history (think of the $100k+ game cartridges, some art, or the entire NFT ecosystem) involve transactions that aren't completely arm's length.
You sell to an accomplice, knowing full well that you'll never actually see the 100k. But you've already established a paper trail that the item is worth a packet. Then you have several pivot options:
* Simple money laundering.
* Creating a backstory for a large tax write off. You donate a similar item and use the sale history to justify claiming it was worth $100k.
* Bootstrapping a pump and dump market. The first few sales are to insiders at a wash behind the scenes, but the media and paper trail makes it possible for a real sale to a sucker outside the con.