@gerowen NFT's by and of themselves aren't that useful. Tying them to a digital asset doesn't really make sense either because, as you said, the asset can be easily copied.

Blockchain needs a link back to the real world. For money this is simply the IOU value + fees paid to transaction processors for recording those transactions.

With non-fungible tokens, the real value would come as title deeds to physical assets. e.g. You might want to be able to prove to an enforcement agency that you purchased a particular diamond. (Land, and some things like vehicles, already have a third party title deed solution).

Providing the physical good, e.g. diamond, along with the title deed (NFT) is more valuable than just the item alone. You can only sell the title deed once.

Also, a public blockchain, e.g. Ethereum, is better for storing title deeds than a private one like Everledger.

With a private chain an exchange needs to coordinate payment, the title, and the physical good.

With a public chain, the payment and title can be executed as an atomic contract operation, so you only need to coordinate the physical good. And if you don't, the contract should be usable as evidence.