It is best to buy coins that have a working product which people use. Otherwise, whatever the project would be if it does not have users, then your investment will not bring profit
all depends on the development of the project. if they already have a product but are not developed and do not have a market, they will not have price growth. it will be detrimental to your investment. this happens a lot in new projects that are finished with ICO or IEO sales and start walking and looking for their markets.
so you choose the good but at a low price so you can get more profit if you wait for growth to increase.
invest good coins and those that have great opportunities, so you can get a pretty good profit.
You must be good at choosing and managing strategies.