The Giants are hoping that history doesn't repeat itself. Dallas did their part last season to 'bury' New York during the regular season. Now, they hope to return the favor.
However, they would be the first to admit that you don't have to necessary make certain that you kill off your division opponent's playoff chances during the regular season to help win a Super Bowl. It's about burying your rival in the playoffs that ultimately matters.
The Cowboys should treat this game like every other game through the end of the regular season and play good, sound football well enough to win a playoff berth. The time to play great football is during January and February and the Giants would be the first to admit that as an undeniable proof of success.