I think it's better to think in terms of market cap, price per coin is almost irrelevant as with most coins you can buy and sell fractions, look at IOTA your not actually buying 1IOTA on an exchange you're buying 1Million Iota which is why it's listed as MIOTA.

Also IOTA is still a proof of concept at this stage.

Before investing in anything I look at features, use cases, if they have a novel idea with a good development team.

https://coincheckup.com/ will provide a good starting point for this.