Mine RROD'ed on me two days ago. I got mine Nov. 2006 and have kept it well ventilated and everything else you're supposed to do. It was a flaw in the system, unfortunately, and I'm without for 3 weeks. Repairs are free and you get a month of XBL. It sucks, but life goes on.

To answer OP's question, I would definitely recommend you getting one. If you get a new one, you shouldn't have any problems with it. At least, the chances are much slimmer.