The LaQuinta is still our main host hotel and the parking lot is where the action is. However, if you don't mind staying a little further out there is a new option: Also, sounds like this place would be a pretty fun place just to stop for a visit. I haven't been there yet, but I hear its pretty damned great.
They are no further than the Joplin hotels, and they are a major sponsor of Mo-Kan! It's a cool place!