There's a potential for them to produce value. Not the case with crypto.
Bitcoin got labeled just a "store of value", but with Bitcoin Lightning it can be used for low fee payments too.
Pity about mining though, I wish they followed Ethereum into staking. It doesn't matter how much value you provide if you burn the planet along the way.
Both Ethereum and Solana are currently coded to do this, though AFAIK neither of them are currently cash-positive due to their burned fees not being enough to offset issuance yet.