Do you really believe in bitcoin as a currency?
Absolutely!
And I think Bitcoin is just the beginning! What we'll see next is a recognition by consumers that alternatives exist, then a demand for these alternatives, then an integration of these alternatives into the existing Bitcoin merchant POS systems. Like Visa, Mastercard, and Discover, people will use different coin payment methods via a common POS device.
As this process evolves, capital will begin spilling over into the altcoin sector and a healthy competition will develop between currencies.