I have returned! Chicago was lovely, and I experienced maximum archival geekouts.
Sadly the body slices exhibit was not in place at the Museum of Science and Industry [they also charge extra to go inside the submarine (which was still cool from the outside) and for the traveling CSI exhibit. This = lame]. They did, however, have a truly great exhibit of robot toys.
I was on a tight budget, so I didn't experience much of the restaurant culture, but I did have fun eating granola bars and triscuits and making bourbon cocktails in my awesome hotel room. Overall, I just can't wait to go to Chicago again.
Full photo set here.