"Steven P. McNicoll" wrote in message
ink.net...
With regard to subway riders there is only one distinct group; subway
riders. With regard to civil aviation there are two distinct groups;
airlines and GA. That's why your subway analogy doesn't work; you treat
one
part of the group, you and your relatives, differently than the rest of
the
group.

Any group we care to delineate is "distinct" in some respect or other
(including the arbitrarily delineated group in my analogy). How does the
degree of "distinctness" of a given group bear on the question of whether
marginal cost is the the right measure to use when assessing fees for that
group? It seems to me that you're arbitrarily requiring the group to be very
"distinct" just because that gives the answer you want to arrive at
regarding GA fees. The wider public, which does not share our incentive to
invent reasons to keep GA fees low, will not be persuaded that the degree of
the group's distinctness is relevant.

--Gary