The scope of NFT has not yet been fully implemented. In fact, we are at the initial stage of development of this young cryptosphere, the application of confirmation of any digital thing has yet to be developed. But there are already huge opportunities to get huge benefits for some NFT collections and games. If you are just starting to study NFT and do not want to spend a lot of money on gas and other consumables, try looking for something interesting for yourself on PasarID or MintbaseIO, on these sites, a blockchain is used that does not require a gas payment (0.01 $). There are many promising and interesting artists.