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 usefulnesss of the token
3. pretty even split of the two.
^ My answer to your question.
1. I do invest in price in the market when it has a bearish trend
2. The usefulness of tokens is very important to invest and knowing this is very important to avoid hype projects.
3. No, combine that two options for a better result.
4. Invest in what you can afford for long-term or short-term investment.
Nevertheless, the word DYOR is very important when we talk about investing to avoid possible losses or probably a project that will turn out to exit scam later.