Nvidia needs to stop sticking their foot in there mouth for sure, but in general, I agree with them. Gaming performance is what matters. I just built my rig up to run 43 cars in Nascar 2003. Believe me, 3dmark doesn't tell me anything, as far as that goes.
You want a good benchmark? Try running Nascar 2003 with 43 cars, and all options on. It runs in D3D and OpenGL. Frankly the performance I see in this game is better then anything 3dmark can offer.
ASUS P5B Deluxe
Intel Core Duo 6600
Cooler Master CM Stacker STC-T01