I do not think that now many people think that it is possible to make big money on NFT. It is necessary to know and understand the market to make a big money on it.
NFT market is not requlated yet. That is why there are so many spekulations and manipulations on this market. In such conditions many people lose their money.
NFT can be used for many purposes. Hope in the future NFT will continue to develop, will become more useful and popular.