I don't know Bob, I guess I should apologize since I don't know exactly what happened in your particular situation. 

I just keep thinking of the old adage that the key to happiness in life is consistently having low expectations. 

Going down to customer service to complain because you didn't get a window emergency exit seems a bit privileged.  

But again. I don't know the specifics. If it was a restricted class economy ticket I can see why you got the response you did. If it was a full fare economy ticket then like you, I'd expect some nice lip service and a couple hundred miles for the mix up.