-The MAC schools get much needed money for their program.
-The players want to play on the big stage against the best competition, on bigtime TV networks and love the thrill of pulling off the major upset.
-The P5 schools get their win...usually.
-The MAC fans love to travel to these big venues to watch their team play in front of 80,000+. I would much rather travel to watch them play at Kentucky, or Indiana, or Tennessee than Buffalo or Central Michigan etc. Sure it sucks when it's a beatdown like the Zips got this year but as they improve they will compete.