FUD Zilla heard whispers that NVIDIA will ship Far Cry 2 with its high-end GPUs to boost sales:
Nvidia is kind of desperate to boost the sales and has to use all the tricks it has in its sleeve. Nvidia's chips are inferior to ATI's and therefore they have to either drop the price and include the candy in the bundle, if not both. What goes around comes around, and Nvidia has to learn how to survive as a graphics underdog and this is not the position where Nvidia fells comfortable.
Far Cry 2 will look good as a sticker in the box and getting this game together with your card is definitely something that will make some people to deflect to Nvidia just for the sake of the game.