If you're serious, it's on the website.  I just checked it out.  Prices vary of course based on the aircraft as well as the destination (Chicago to Penn State or Nebraska is going to cost more than Chicago to Ann Arbor or South Bend.  But it seems like most tickets are around $1,500-$1,700 per person.  Round trip in a day--early morning flight/back that night.  Ground transportation included but not the game tickets.  Even eliminating the need for 1-2 nights of a nice hotel and net out the cost of gas/car, you're still shelling out a few thousand extra.

So, definitely out of my price range that's for sure. Seems to me this would make the most sense for recruiting/sales events for people w/ large corporate accounts to wine/dine highly coveted recruits, clients, etc.  Or perhaps very wealthy yet insanely busy individuals (finance types, equity partners at huge law firms, etc.) who just can't get away for a 2-3 day weekend due to working 70+ hour weeks.

But unless you want to just explore the novelty of it, I don't see how this would appeal to "regular" wealthy people--i.e., folks who are retired, people who own their own successful small or medium businesses and have the ability to take long weekends off like normal people, trust fund types, etc. Because honestly, if I were in those positions, I kind of like taking the 2-3 day road trip to watch the game.  Go to some favorite restaurants in Ann Arbor, explore other college towns, participate in the other stuff surrounding the games, etc.