You are absolutely right buddy, just yesterday I was on twitter page of a project and someone posted an nft he had minted and the it was an image I could easily save to my folder, and this same thought came to me,
Will you be able to sell that image and make money in return?
Just kidding, but the current market of NFTs are equivalent to gambling and there are absolutely no use case for the majority of the projects out there. Cryptopunk was sold for millions whereas BAYC is worth atleast a $100,000+ and these are obviously nothing but fake FOMO which was created among the investors. The same happens with various shitcoins like DOGE/SHIB which has no value and usecase but still being pumped for fake profits.
But through NFTs, we will be opening up a whole new world of metaverse just like what was shown in Ready Player One/Free Guy which can exist in blockchain and should be unique. For instance, consider the role playing game of Aurory which is currently in development where each NFT/avatar in the game is being traded for 20 SOLs. When people like you or me buy the NFT and participate in the game we will be able to win aury coins which can be helpful in buying in-game real estate and many more. If you had been deep inside Decentraland, you should be knowing how NFTs can transform the current world video gaming and this was the one among the core reasons for Facebook renaming its company to Meta! The novel Ready Player One explained the similar concept 10 years ago but without the use of blockchain and just through a simple video game which would be meaningless in future.