Whatever, I bought some LTC and Ripple for my bucks and just watch the market the next couple of weeks / months.
If I can make some profit --> great (and maybe I am going to invest a larger amount than just 100$)
If I loose the bucks --> who cares (at least I tried)
Excellent entrance into the Crypto-World! Congratulations! This is the most clever post I have read from a beginner.
You will learn to understand the situations (right now, everybody awaits the BTC-fork and most of us expect BTC to go down and the altcoins to rise - but nothing is guaranteed...). You will learn how to "Never lose money". Be very careful. Learn where to find advisors (for instance in Youtube: "DataDash" and "Coin Mastery"). The most important lessons are in my opinion:
1 Buy only at dips (very low dips, extremely low dips). Never buy a rising coin, as it will come down.
2 Learn to wait and do nothing.
Good luck!