I currently have AMD video cards in my PC's. Perhaps if nividia would show off some features of their cards (with a little marketing thrown in) my next cards might be nvidia.
You know, something along the lines of: "check out this cool new feature, now enhanced and optimized for our new Kepler architecture!" Show me the feature then try to sell me on how it will work better on their own hardware.
Youtube it.
/facepalm