Doesn't need long complicated answers - just a simple question:
Do you invest
1. mainly on price/the market trends
2. mainly on the underlying usefulness of the token/NFT
3. pretty even split of the two.

I invest based on market prices and trends, my strategy implementation is not all coins are treated the same. Coin price variations determine long-term or short-term trades. for example, in Eth I chose to invest in the long term, of course, apart from a fairly large price, it is also a potential Altcoin that many investors are interested in.