I only fly AA when someone else purchases the fare and every time I fly domestically it's on a shitty MD-80. I flew to London last year and I don't remember what the model was but I do remember it had the old phones that you had to slide a credit card into and the cabin had three television screens attached to the ceiling of the plane, one of them didn't work. I begged the company that booked that fight for me never to do it again, that was nine hours of hell.
I have no idea where they're hiding their new planes to get that low of a number for their average fleet but they should start to actually use them.