[oneplane]

A card that people want to collect in your example is scarce because it cannot be re-created with the same properties that the ones that already exist have; all one could do is create a replica.

NFTs are artificial scarcity ahead of time with the purpose of emulating ETFs, hidden behind a fake 'new' concept of a digital deed (which is what a blockchain already is, no need for NFTs for that). Digital 'goods' however, are always replicas. There is no 'true' version. All they are is an attempt at monetary manipulation of people during the time in which they aren't as well-known and regulated as ETFs are.