Parting out the visible bits could be lucrative too, especially if it's a desirable machine like No Good Gofers or Attack from Mars.
Entertainment is an inherent value of something.
If that sounds stupid that's because it is. It's like saying there "is no inherent value" in a textbook because all it does is teach you calculus.
My point is that Buffet seems to understand non-tangible benefits are still valuable, and not only that he is hypocritical in his reasoning that he would have to sell it back to you.
Money has no inherent value other than that which you can buy with it, and so far the biggest value of bitcoin is in being able to buy USD, or other fiat.
Pinball machines are fun with or without this. Warren Buffet is saying he wouldn't want all bitcoin (in this hypothetical scenario where it is 100% concentrated under a single owner) because there is no reason for him to believe he could sell it to anyone.
Creating demand for essentially nothing is way harder than creating demand for something that has immediately demonstrable economic value. This is why crypto is so full of scams and pyramid schemes and shady marketing.
Pinball can be entertaining without a market for pinball machines, I don't see how bitcoins would be entertaining if there were no market for them.
So if you view bitcoin as a consumable you are consuming to provide entertainment to you, that's great. I'd personally take a lower cost source of entertainment, but to each his own.
I have used it exclusively for lowering transaction costs, lowering my cost to buy bullion such as silver. Most vendors in the US do not have any lower cost of buying bullion online in a way that clears under an hour, particularly during times when they wave crypto fees. ACH and wire (sometimes) can be free but never clear (for me) in under an hour (and on occasion even get held up for days), and I find the counterparty risk of waiting 1-3 days unacceptable.