I was pretty turned off to BlackBerry at first, and the only feature I actually liked was the QWERTY keyboard. Why was I turned off? I had a 7750.
Anyway, I got rid of the BB for a while, then decided to give them another chance with the 8100, and after a couple weeks of SureType, I was hooked. I still think I might prefer a full QWERTY, but for the size and price, you just can't beat the 8100.