I wouldn't go to michigan ave unless your trying to really spend money...
But you can go see the window display at the old marshall fields..that's like tradition.
I wouldn't go to ditkas if was here on vacation I'd go somewhere nicer..the trick like most big cities is if there a restaurant you really want to try..
Go during lunch..most of the time they run their dinner menu just smaller portion during lunch and half the price
So that aged 90day aged ribeye won't cost you $75 like it would for dinner,