Nice one.

1. Market cap is good when you assume a coin can increase 1000x for example. Because you know other coins have touched waters that a 1000x increase of a similar project. Example are forks like bitcoin cash. We could straight away assume its price would be quite similar to bitcoin... so if it had started at a given price, there were huge chances it could see an increase to similar values of bitcoin.

In fact, prices are not important at all, because if i had 10 bitcoins today i would have 100.000 dollars. But the thing of price is that it gives the idea you can make more money because low price coina allow you to hold thousand of coins even with 10 dollars ivestment.

Just look at Hush. Started with 2.5mil market cap now its 1b i guess. Thats 500x increase. And really the price doesnt matter if it had started from 20 a coin. These coins can be had in fractions. So a 100 dollars would have always given you a 50.000 dollars return no matter if u would hold 3 coins or 15.000 coins.