Minnesota State is a program that has a decent attendance figure year in and year out for a program with a lousy coach and a below average team. Still with a terrible team this year, and a gophers squad which wasn't #1 in the country, when UMN comes to town, the building is at capacity in attendance. For a school that plays in an arena with shared revenue, losing those two games with an extra 1500 tickets sold, plus the concessions they sell, losing a high profile series at home is going to make an impact.
The best way to get gets to come to Mankato is to say hey, we play in the WCHA, the nation's best, deepest conference, where you'll play those high profile schools such as UMN and UW, and show em that when they turned you down, they'll pay the price for it. (Let's face it, we have poor facilities compared to BSU, UMN, UW, UMD, etc.)