I'm sure many people didn't see the auction (I know I didn't). And also, 90s collectors tend to be player collectors more than other eras (at least that's what it appears to me). So a whole set of SportzCubz might not sell as well. But I'm sure if the owner breaks it up and sells each card to a 90s player supercollector, they'll make bank. I know I would have paid much more for my Larkin SportzCubz than I did. And I know several other Larkin collectors who would have caused the price to rise if it was a public auction where I found it.
It reminds me of the 96 Mirror Gold set that sold. I bought one of the cards when that set was broken up and sold off individually. And that guy had to have made a fortune. All he had to do was front $150,000 and take all the risk himself to pull it off.
Edit to add: I just found the auction. I tried to search SportzCubz and couldn't find it. Turns out, they use the same spelling "SportsCubz" with an "s" that baseballcardpedia uses. Does anyone know where that spelling came from? The card literally spells it "SportzCubz" with a "z" right on the card.