Even if the price is low, you should not rush to buy some kind of coin. Let your thoughts be unaffected by coding prices. You should consult the information and make sure you understand the nature of the coin.
Do not let others influence your thoughts because you are the most trusted source of information.
If you really like the idea of investing, be sure to talk to your team, the community and the development team. If the community is large, at least the coin assurance you are investing is greater.
If the investment idea is good, but the support team is not good or too small, the high possibility of coin is not well developed.
You are right there are some coins that look like promising but in the end it is not. So before investing we need to have an observations about the project we are planning to invest in. We need to have a careful investagation before going into the project in order to at least less scam and to earn more if get lucky.