Moremiles: "When did it start to matter how much fare a customer paid for getting different service? So if we get seat sale fare... we deserve crappy treatment? Does it take a full fare to get FA's attention?"

I think that different service based upon how much you paid might have begun on the first vessel charging a fee, probably well over 2000 years ago, and has been consistently applied ever since. You should never get "crappy service" but I think the expectations far exceed the amount paid in most cases. You don't get the same level of service in coach as first and the environment that employees work in directly relates to the level of customer service they provide. If you are nice and reasonable so will 96.8% of the peole you deal with.

I am very happy with the return for the money spent.