I literally came from a G1. I retired my G1 at about 4pm today.
I bought my G1 - cash, from a private party - a year after it hit the market, about a month before the G2 became an upcoming phone rather than just a rumor. Which is to say, right before Android phones became really ambitious.
And somehow T-Mobile stuck me with a 2 year contract w/ penalties on a phone i owned outright. This is, in part, why i am no longer a T-Mobile customer.