Today Fortnite and games like it get major revenue streams via selling special skins, game items and other art work. Now name a property that let's you trade or gift items? If you can name any - do they let you trade on ebay? How many platforms let 3p artists contribute to the platform? I don't think you can honestly describe this market place as anything but primitive.
NFTs solve the hard problem of accounting for virtual goods in a wildly open, secure and interoperable way. They can codify an incentive structure that allows trading on a secondary market while ensuring creators, platform owners, and even former owners can receive percentage royalties. You could easily imagine Fortnite's Ninja streamer selling one of his skins on a stream to a fan for a significant premium - and some of that revenue could be codified to flow to the platform, the artist that made it, heck ninja could set it up that any later sales send 5% to a food bank.
Thats just one reason for me why NFTs are a high potential technology. Are there challenges? Tons of them (look at eth gas prices...) But it doesn't seem insurmountable. Ultimately there is utility and value. Definitely not hype.