I have always been interested in this type of trading and investment. Still don't understand it all fully though. What they need is a entry-level program that allows people without the full understanding to try it at a very low cost. It is very hard to part with money when you are not 10% sure what you are actually doing or how it works.
Just a suggestion, but something that allowed a user to invest $10 instead of $200 off the bat would probably end up drawing in more customers that would, in time, invest the full $200 minimum or more.