I bought Litecoin when it was $4. At that time I thought it was high and did not make sense. It has gone up almost 10 times. I just bought EOS at $1 yesterday. If you bought $30 worth yesterday it would be worth $135 today. I was buying $10 worth of coins on Bittrex when these coins were pennies but their prices have gone through the roof. A little at a time does grow into a lot with time because of the power of time and compounding. You can only do what you can do.
RE: Good advice! Big money!