Now NFT is very popular. NFT grow in price even more then other altcoins because there is a big demand in NFT.
NFT is actively used in gaming. Many games already have a big communities and a lot of users.
That is why the liquidity of many NFT is very high.
NFT now very popular but it is a morden trend. It is hard to say how long the popularity of NFT will last.
A lot of depends where NFT is used, how useful it is.
Now NFT is actively used in gaming and if game is popular will be demand in NFT.