Fair point - but you can't stake NFTs, can you?

Their selling price is on the blockchain, there is no practical reason why you can't. Valueing them might be a bit tricky though.

If not, somebody is feverishly writing an ERP now

I can use my Monopoly money to get more Monopoly money, too.

That’s the root of the scam!

One of the big appeals from crypto people is essentially “all money is bullshit, so buy my bullshit”. The even nuttier people would position Bitcoin as gold.