Originally Posted by
christep
The problem with this argument is that, for example, a passenger who has paid to be in the F cabin for one segment of an AONE3 ticket actually brings CX less revenue than a full-fare Y ticket holder, never mind full fare J. So it really doesn't work to go down the road of relating the service you get to the actual dollars CX is getting for the ticket unless you go back to a much simpler fare model.
It also assumes that a Y op-up passenger is always a Y passenger and never books J or F. I doubt that's the case. (I know it's not for me.) I think it also assumes that a passenger's good will won't affect their choice of airline. That's certainly not the case. But, as I said, I think it's easy enough to guard against disappointment by just telling people what to expect when they are op-upped.