The market is cycling yet again. Have you seen this recent article over at the inquirer?
Just as ATI caught nVidia with their pants down a few years ago, life has come full circle. It's once again nVidia's turn. They've caught ATI with their pants down. Good for them.
That's why it doesn't pay to be a zealot.
The only thing that keeps me with ATI for now is the fact that they opened up some of their specs to the DRI. When I go to upgrade from my 8800, if ATI hasn't released more I'll most likely have a Geforce 8000 or whatever.