Have you noticed whether all old cryptocurrencies went through ∧ shape in price?
Will all cryptocurrencies have gone thru this and let people make big profit?
Obviously you are looking at the 2017 bull run of the coins .most of the coins that time were super high and then came down a lot . You can't expect each and every coin to follow it though.
Some projects will be able to exceed the previous ATH, but of course in my opinion more than 90% of all projects are trash and do not represent any value, or copy each other!