Originally Posted by
J.Edward
Bingo. What AA's doing is offering various levels of membership - mainly one which is last seat availability (discount off full F, J, W, Y) and another which requires you to book into H (think B on UA) with a discount if booked prior to seven (7) days in advance. ...
What AA is / has been offering is a limited version of UA's existing PassPlus and all that is new is a reduced entry commitment level. Not unlimited travel nor anything particularly new or innovative -- just a lower minimum purchase requirement.