The biggest problem that I have with Bitcoin is that there's a bit of an impedance of trading dollars for BTC and vice versa. When you could use Dwolla, that helped, but now that Dwolla pulled out (at least that's my understanding), it's even more difficult to get BTC.

What would be ideal, is to be able to use your credit card to buy BTC. But that won't happen because credit cards need the ability to support charge backs and that makes it difficult with BTC's anonymous nature.

Once this problem is solved, I think you'll find a lot more people becoming involved with BTC again.