Originally Posted by g289t

True, depending on how much hassle one is willing to put up with. I recently had a 5 hour layover at ORD, with my departure flight leaving from Terminal 1. I decided to go to Terminal 5 for two reasons:

1. To see if I could get into T5 with a boarding pass for a flight departing from T1.
2. To check out the Priority Pass lounges.

In the end, I felt it was worth it. The lounges weren't as good as a lot of airline lounges, but in my opinion, it was worth my time. But I enjoy airports. For a passenger who would not enjoy the transit to another terminal and two security checks, I'd say grab a meal at a restaurant in your terminal and wait out the layover there.