I would contend that a Hallmark card has usefulness after being exchanged.
I can’t hang an NFT in my house. And doing so with Hallmark cards has tangible benefits to my well being. (the joy of seeing a thoughtful card with personal meaning, conversation starter if company is over, etc)
Perhaps something will be invented to reproduce that experience for NFTs, but I haven’t seen it yet.
I wouldn't personally buy an NFT for those purposes, but tons of NFT owners buy them to be able to use them as profile pictures. Yes, you can put any arbitrary JPEG as your pfp including an NFT owned by someone else, but it'd feel the same as wearing replicas of branded clothing (and people mostly just don't).
That might not seem as meaningful as hanging them in your house, but I've watched it become that meaningful for a ton of people (as "irrational" as I think both NFTs and Hallmark cards are).
It's the digital world now. I've been purchasing and equipping hats in TF2 for a decade. I bought a $300 digital item in 2012; plenty of people called me crazy but hey I see value in exclusivity.
I can’t hang an NFT in my house. And doing so with Hallmark cards has tangible benefits to my well being. (the joy of seeing a thoughtful card with personal meaning, conversation starter if company is over, etc)
Perhaps something will be invented to reproduce that experience for NFTs, but I haven’t seen it yet.
edit: Format and speeling