Remso, one more thing all financial markets need, Liquidity. The crypto’s that will win will have a huge base of users, as well as an infustructure of buyers and traders, so if you want in and out of the market there is liquidity to do it. If there is no liquidity you get what happened to Coinbase last year multiple times, the buying and selling were going crazy, and they had to freeze sales. It may have been because theycould not keep up with demand, but it exposed weakness, which forced the price down. If in the back of your mind you are worried you cant sell when its high, your gonna sell earlier. When everyone has that in the back of their mind, as soon as there is a small swing up, everyone dumps, and the price shoots down again.
This is why i dont mess around with any alt-coins except Etherium and Bitcoin Cash. I may be loosing out, but liquidity is their biggest issue.