The tulip bubble ended because the bubonic plague killed all the speculators and didn't even affect the spot market of tulips, so we don't even know what would happen. Worst bubble example.
There were several great, rational, trades with beanie babies as well that has nothing to do with the latecomers that hoarded them and acted surprised and delusional when they were holding the bag.
Out of all the famous bubbles, I think equities bubbles are more useful examples of irrecoverable irrational exuberance than any commodities/product bubble.
If porn is the bellwether, then use cases have arrived.
The CC companies withdrew from PornHub because their business model was paying for the production of child pornography.
Crypto pops up its ugly head yet again. Not a coincidence given the other "killer apps" are extortion, money laundering and greater fool farming.
Crypto, NFT .. who knows, only time will tell who was right.