It is very important to evaluate the potential of NFT. NFT is used for collecting digital art and if you want to earn money on collecting of digital art you must understand the art.
Obviously, you have to understand what you have to buy. In the world of art, many people do not understand the artistic value of a creation. In the end, someone buys something that has no value. Perhaps, it would be better to buy a photographic NFT than an unintelligible NFT meme. We may hear Cryptopunk, this NFT punk is worth because it is part of the history of the birth of NFT in 2017, but for new similar NFTs, we may not be able to find that value.