I grew up in Omaha, so it was never too long of a drive. Now I live in the middle of KS so its about a 5-6 hour drive one way, every game day. Nothing like driving from New York but still. A little advice though, gates usually open 90 mins before kick-off. If you want to find a decent parking spot and check out the stadium and the pre-game events get there about 2 hours before the gates open.
Then you can get in and out of the trophy room, Heisman Experience room, you can see the weight room, and even join the line of fans as the players get off the bus and enter the stadium. Although all of that stuff is really cool to see, the best thing about being one of the first ones in the stadium is watching the sea of Red fill up!