The reason why they chose this location to open the DVC center is:
Disney says it chose the Chicago location because of its proximity to a dense population base and an existing large membership base in and around the Chicago area. It hopes to use existing the word-of-mouth experience of members to attract prospective buyers.
Oh, they know me too well! :)
Since I'm in the Chicago area, I will certainly visit this once it is opened, just to look around, especially the model room for at the Lodge.