Since both the Hyatt Regency and the Hotel Wisconsin have filled up during the joint meeting, here is a list of other hotels people may wish to investigate. This is the hotel closest to the Hyatt Regency, being about 4 blocks away. About 5 blocks from the Hyatt.
All rooms have kitchenettes.
There are some cheaper places to the west of the Hyatt Regency, going out past downtown and Marquette University and beyond. The part of town isn't as nice, and I haven't seen any of the rooms, but I think that at least the Ambassador Hotel is fine. These are a little farther, on the whole, from the Hyatt, but if one doesn't want to walk, there is frequent bus service on Wisconsin Avenue. About two miles from the Hyatt. About two and a half miles from the Hyatt.