I bought a used Sprint Treo Pro for $200 which includes the very nice case that Sprint sales. I'm not sure sure why he didn't return it, but it activated without any issues.

Tonight, one of the buttons on the keyboard only works part of the time. Sometimes it takes multiple presses before it works. It works fine for awhile and then starts again.

I have insurance, but will Sprint cover it considering I'm not the original owner? other than that, the phone is mint condition.