Is there are reason why there aren't more sites that allow easy purchasing of different types of coins and crypto-currencies with USD? I wasn't sure if it was because not many people have the funds or ability to create a service, or because of the potential for legal ramifications? Thank you! Sorry that I am new and could not post this question elsewhere.
Mostly it is because the only coin worth anything in real life is Bitcoin, and so people will only trade USD for Bitcoins.