The Beanie Baby market on eBay is useful to study because it shows much the same behavior as NFTs. Beanie Babies are non-fungible - each one is different. So there's no "market price", just lots of individual offers. On eBay, you'll see asking prices around $5000. But if you look at completed transaction info, prices are around $50. That's what an illiquid market looks like. NFTs behave the same way - high asking prices, few transactions. Such markets don't crash, they stall.
Interesting! I see that there are grading/authentication services out there for Beanie Babies. That makes sense, as a lot of commodities have systems for taking unique objects and making them tradable. E.g., the CME wheat contract definition is extremely specific: https://www.cmegroup.com/content/dam/cmegroup/rulebook/CBOT/...
I wonder if we'll see things like that in the NFT market.
For those unfamiliar, Beanie Babies were a collectible toy that had a multi-year fad in the 1990s, with 5-dollar toys trading for thousands: https://www.ft.com/content/1563d643-332f-3887-8c6e-caf7435f3...
It's true that the Beanie Baby market never totally went away. And I'm sure that some die-hards will keep Bitcoin going for decades after it ceases to be practically relevant. But however much the bubble incentives keep major players aligned during the bubble, that doesn't mean the prices will stay up forever.