I live in Austin and I have to go through DFW more often than not. Everything they say about DFW is true and I think I know the reason: DFW was designed to be an endpoint not a hub. The horseshoe- shaped terminals are great for jumping out of the jetway go across the aisle get your luggage and get out of the terminal. I don't believe the designers thought the best way to go from point A to B is through a semi-circle. The problem is that DFW would be dead as an endpoint. Let's face it the Dallas/Fort Worth area doesn't receive that many visitors. DFW has grown so much in an attempt to make it more hub-like which is costing a lot of money: three trains (well - two now) none of which actually solves the problem sings all over the place advising you when to walk and when to take the train annoying golf carts asking you to get out of the way and all sorts of gimmicks to make the place more efficient. If out of a sudden AA went bust DFW would be a hot potato in the hands of the two city governments. So now DFW's survival depends on AA remaining aloft or some other airline taking it as a hub if AA went away. The problem is the first thing an airline operations manager will see is that DFW's design is not the best for a hub SkyLink and all.