Fair point. It just seems like a very of a narrow market for high speed public transit over such a short distance. A large % of the travel time to O'Hare is not

Fair point. It just seems like a very of a narrow market for high speed public transit over such a short distance. A large % of the travel time to O'Hare is not spent on the train/in a cab. As a former consultant, I agree that business travelers would be willing to pay the cost whatever it was. However unless my hotel/office was right near a stop or traffic was unusually bad, I think it would take less time to get a cab from wherever I happened to be than to schlep over to the stop, wait for a train to arrive, take the train, and then walk all the way over to the terminal.