When I lived in Chicago, I rarely shopped at Central Camera because Wolk and Altmans were just down the street and both had a larger inventory and better prices. However, Wolk and Altmans are gone and only Central remains.
When I was in Chicago a couple of years ago, I had to go to Central Camera to buy some portrait film because I had used all I brought with me. While I was there, I noticed that they had a good selection of film, used equipment, and new equipment in their small store. In fact, even though I went there just for film, I ended up buying a used 35mm f/1.4 Nikkor lens that they had on the shelf. The film and lens were fairly priced. The service provided by the salesman was exceptional.