What a lot of people don't understand is price compared to marketcap. "OH ripple is only 1 buck, what a deal!" But how much is it really worth, when you understand that the total supply of ripple is 100 BILLION? That alone should tell you that it is IMPOSSIBLE for ripple to go to 100$ each like far too many people here think.
Find a coins real price this way: Compare circulating supply/total supply to the price of the coin, and compare that to other coins. For example is NEO priced at 110$ and ripple is at 1$. But there is 39 BILL ripple circulating, and 65 MILL NEO circulating. 39B/65M = 600 which means there are 600 times more ripple coins than NEO coins. AKA NEO is worth alot more PER coin. Directly translated with easy math that would indicate that NEO should be worth 600 times more, but it's worth 111 times more. = You could actually say NEO is alot "cheaper"
This is just a random example of how basic math should be used, and of course there are many many more factors to consider. But it's a quick way to see if something is seriously under/overvalued. Then you have to look at what their product actually have to offer(whitepaper), DEVs, roadmap, adoption etc etc.