Market capital and trading volume is much more important when determining what a low value cryptocurrency is. A cryptocurrency can easily cost $0.10 but be very expensive because it has a $100 billion market cap. It will take a lot more incoming capital to significantly move that $0.10 cryptocurrency with a $100bn market cap than it would to move a $500 cryptocurrency with a $1m market cap.

Thus your major view of what a "cheap coin" is should not be based on price but on market capital. This is why that is the default ordering on pretty much every website showing a list of cryptocurrencies.

On top of that, you need to look at the team, their goals, have they written any code, do they have any credibility etc. What makes this crypto different? Why should you invest in it? You need to look at a crypto and answer those questions to see if it is worth your time.