Originally Posted by
flieduk
You mean it would not be much different for BA to serve Champers in Y? (apart from the opportunity cost of customers downgrading)
Brand differentiation. Same thing with F and CW food. It likely costs more to fly the plate than the food on it. Could probably serve the F meal with fewer choices and on lightweight dishes on a lightweight tray for not appreciably less than the cost of the food in F.
But, it's all about brand differentiation.