I don't disagree but can't you say the same thing about expensive art in general? I mean is any painting really worth $100m? At one point it's not about the painting, it's about being able to splash a lot of money at something expensive when you already own everything other expensive thing you could splash money at.
That's why I always thought comparing crypto to currency, financial investments or gold is the wrong analogy. To me it is more akin to the art market.