There are only like two coins I've invested in that weren't in the top 25 on coinmarketap. The rest I haven't put much money into, since I see them as would be lottery tickets. Most of my crypto money is in dash, neo, and eth and of course bitcoin. Coins that have very small market caps and low trading volumes are destined for their deathbeds, and that's a fact.
no, buying low rank gems is where the big profit is.
I don't agree with that at all. There is good reason why those coins are low ranked, ie, that there is likely nobody mining them, nobody trading them, and nobody wanting to own them. If you buy shit coins you're going to end up with a bunch of coins you'll never be able to sell because there won't be any buyers.