Sure. I fly primarily domestic to every state. Thus I can't use the reginal carriers like USair, midwest express etc. Second, I would rather fly air afganastan than put up with UA's disaster of an airline. Thus I had a choice between AA or DL. I felt DL would get me in the big chair 100% of the time based on MY fyling habits. I have no problem with AA. DL is just a better route match for me in addition.