It's funny you mention that, I mean in all my years building PCs I've never had an nvidia card die, but I've had a 9200SE, 9800Pro and X800GTO die on me, while even my good old Riva TNT2 is chugging along in one old Pentium 100Mhz PC in my father's office.
Those Radeons I mention there were highly abused though, and they burned out performing their duty, and now are resting in video card Valhalla or wherever video cards go when they die
I'm not trying to contradict your point at all, or say that one manufacturer is better than other, I mean, what are the odds that you would have all of your nvidia cards die, and me have most of my Aticards die? It was just bad fortune for us both to have such luck, you hear horror stories from both sides all the time.
The issue with the 290 though is that cards out there vary wildly on their performance, probably more than you would expect from manufacturing irregularities, and that's a real shame because that chip is a beast, too bad you need a third party cooling solution to tame it...