You're not going to get a ticket for $100 or less, just FYI.
What you can do is go and scalp, and as the game gets closer (and even into the game) the prices will drop drastically. But you won't find a ticket for $100 until damn near or after kick off.
However, are you willing to literally fight michigan people and ruin their tailgates? Cause you could potentially get in free, per the Michigan thread and Lax.
Here's his offer: "I've got some disposable income... if someone would promise to just go around fighting people and wrecking tailgates, I'd fly them in for sure. 100% serious, no italics.
I'd want video proof though of the wreckage."