Originally Posted by
etiene
The fact that the lower priced service entirely contains the higher priced service - and is thus something that the purchaser can unilaterally avail themselves of - is somewhat peculiar to the airline business [hence the plethora of analogies], but is not relevant.
I think it is relevant, as I can't think of anything else outside of air transport ( and I think the UK trains are also an anomaly in worldwide rail travel pricing) that getting a greater amount of service costs less than a lesser amount of service. If I hire a yard service to mow my grass, it costs more if I have a bigger yard over a small yard. If the crew shows up and mows my front grass and I tell them not to bother with the back (even though I have paid for the back to be mowed), they are not going to send me a bill for not mowing the back yard. The very idea is laughable.