I'm just getting started on a similar journey. I think NFTs have serious potential that hasn't been realized. I am researching a protocol now that allows you to add multiple characteristics to an nft including locking tokens, earning yield, time released events and multiple functions like a smart contract. Digital identity is another very interesting use case.
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The more I'm learning about it, the more I realize we're in the infancy stages and there are probably use case scenarios nobody has come up with yet. There's a lot of room for this sector of the space to grow.