Did you visit any institutions/attractions whole you were in downtown Milwaukee? I agree, the old and the new is a fun juxtaposition in this city. It also has quite the festival scene, frequently with good music, food and drink, beyond cheese and beer (as if that weren't enough ;* )
Nah, this was my first time there so I just wanted to absorb what the city feels like. Yea, I bet I could live there for a few years and not experience everything it has to offer.