Unless you go to that creepy libertarian freedom festival in NH where USD isn't accepted, I don't think I'd recommend hopping on the BTC train. On one hand, it's extremely useful for nearly-anonymous online transactions. On the other hand, anyone who exchanges Real Money for cryptocoins is feeding into a ponzi scheme. If you're investing in it to make money, shouldn't you be able to explain why you're making money?
I guess in some ways, BTC is no different than USD ... they're both only worth something if you agree that they're worth something. Anyway. I'm going to go sit in the corner until capitalism collapses, peace out.