Why does the Minnesota Division play during the summer?

The Minnesota Division has found it is easier for participants to attend games during the summer. Many participants use public transportation (buses) to attend games. Many players find it much easier to get to games during the warmer climate. Not to mention it is much easier to find available and affordable gym space during the summer. In Minnesota, during the winter months, it is almost impossible to find available gym space due to a variety of other indoor sports programs.