I had a friend who was rocking the 2G for a while after the 3G came out. He used it pretty much as a phone and for WiFi, saying it wasn't worth much on EDGE, but he didn't believe 3G would be either.
Then he got the 3G.
Now, every time I see him, he says "Wow, was I wrong, I don't even have to take my laptop with me anymore. This *is* the next big thing."
So, yeah...