First, it looks like a bubble. Here's Bitcoin before the Mt. Gox debacle:



That just screams "bubble" to anyone who's seen one. Bear in mind that the Bitcoin system generates no revenue. All funds must come from new investors. This is not like a startup company. This is a zero-sum game. If you've been in the game for half an hour and you don't know who the patsy is, you're the patsy.