[Ken H]

So it’s basically a collectible, like art. You buy for a) aesthetic reasons; or b) status; or c) as an investment. Or some combination of the preceding.

[Angelino97]

It doesn't really have any aesthetic value, because the digital non-NFT copy is just as nice.

I guess it's a collectible. Except that all you have is a declaration or certificate that the original tweet "belongs" to you.

I suppose it's kind of an investment. Although it's so high-risk that it's more a gamble than investment.