I now also began to look for promising coins that are still inexpensive but have every chance of growing in price. This is a good choice.
I would would agree with your choice of having invested on that ICO coin which is still undervalued for now and maybe for sometime this will grow potentially which could make your investment gain potential profit. However, If I will be in your case, I would rather consider investing on the existing top 20 coins which are already in the crypto market for sometime atleast we could study the price history performance before deciding in selecting a choice coin for your investment.