Earlier quoted context omitted.
Did you know that in most places where cab are operating, you could order a cab to pick you up at your house by calling a cab company and talking to the operator? Flagging down a cab as it drives by is a New York City thing.
I recently spent a weekend in a major city without Uber/Lyft. Trying to call a cab company was terrible, relative to the user experience of Uber or Lyft. After making my request, a few cab companies simply answered "Ok" before hanging up. I called them back to get an ETA, and their dispatchers would give me answers like "30 to 40 minutes" or "I don't know". I wasn't out in the boonies or anything. I was downtown.
Chicago did not have this, and when Uber offered UberTaxi it really was the best of both worlds, for a small surcharge on the normal cab fare.