I'll third that about the travel benefits. I loved my airline benefits when I had them and non-revved over a million miles, but there were times that I got stuck and plenty of other times when I just opted to purchase a ticket. In fact when I left my airline, I was already a PLT on AA.
And I'll echo Missy about airlines hiring from within. Unless you are already in yield management with another carrier, you are more than likely not going to be hired in at that position.