Bringing up the limos and planes makes sense; bringing up the caviar and expensive food doesn't. At a certain point it seems like the author is just trying to foment generic populist outrage.
Possibly - depending on where you get it from: http://www.independent.co.uk/environment/america-to-introduc...
[In reply to original comment on whether eating caviar means you don't care about the environment; this being said, one of the key considerations in the environmental movement has always been an underlying concern about overconsumption and resource conservation.]
