This is why. You get an amazing suite for free on the night of your wedding. They give you a good price on the block of rooms reserved for your guests. They have an outdoor rooftop terrace to have your wedding ceremony. The rooms are spacious and comfortable. It's a prime location for out-of-towners to mill about the city on foot. Also, out-of town guests can easily manage the entire weekend car-less, which will be nice considering almost everyone will be coming from some non-Minnesota location.
I took some pictures while were there and there are some from other people's weddings (you'll be able to tell which is which):

This is what it looks like in August set up for a wedding:
Here are a couple photos I snapped of one of the suites. It's pretty sweet:



This is the foyer outside the ballroom that serves as the back-up space for the "social hour" in case of inclement weather.

Basically, it's all happening. I guess I just can't believe that people plan weddings in three months. I feel stressed and it's like a year and a half away. I'm glad I only plan on doing this one time.
The other hotels we went to were all great and a few are still in the running, this one is just the current favorite!
The other hotels we went to were all great and a few are still in the running, this one is just the current favorite!