Warren Buffet got his start with pinball machines, which have no inherent value beyond entertainment. His only option was to sell back the pinball machine either all at once or in pieces at a time through timeshare (quarters for a game).
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 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.
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.
Entertainment is an inherent value of something.
Parting out the visible bits could be lucrative too, especially if it's a desirable machine like No Good Gofers or Attack from Mars.
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.