True that, but even so, there are more than twice as many Michiganders attending UW-Madison as undergraduates (135) than Wisconsinites attending Michigan (58). I suspect some of these are Yoopers, from Michigan’s Upper Peninsula (UP, hence “Yoopers”), most of which is closer to Madison than to Ann Arbor. From the extreme western end of the UP to Ann Arbor is about a 9.5 hour drive, while to Madison it’s only a 4.5 hour drive. There may also be a few Michiganders who were denied admission to the University of Michigan given its somewhat loftier admission standards (fall 2014 entering class middle 50% ACT composite 29-33 at Michigan v. 26-31 at Wisconsin; 2014 admit rate 32.4% at Michigan v. 49.8% at Wisconsin) but see Wisconsin as a more attractive alternative than Michigan State. Finally, I’ve heard a few Ann Arbor HS kids say they were interested in UW-Madison because they love Ann Arbor but just needed to get away from home; for them, UW and Madison were similar enough to UM and Ann Arbor to be comfortable and attractive, yet a sufficient change of scene. Though on this last point, you’d think it would be a two-way street. Pretty trivial numbers moving in either direction, though.