It really depends on the coins. There are coins that have high potential to be in demand in the future that would be a giod investment. It would be good to evaluate its current value for the past months. See how did that coin fair in the market. If you see relevant increase then that is a good sign.
when talking about the value of crypto coins in the future, I divide into the current coin trading and coin invest. Coin trading is usually one that can provide maximum profit in the short term with a good margin value and is usually very volatile every day
It seems to me that profit can vary not only from the price of coins, but also from their quantity. But this is the question, the price of a 1 dollar coin is quite acceptable.