I have one similar to that too. I found out last night that it was broken. It lasted the better part of 4 years I think, maybe a little longer. It was great, and I'm probably going to get another one... Just have to watch the prices now I guess.
It's reassuring that they can be had for so cheap. I was a little fearful that I would be out $100+ dollars for a new one, as it seems that was about how much I paid for mine, although I cannot remember for sure.