yes is it the fact that everyones doing it make the show feel problematic, is it a need to be solitary when viewing art, does being part of a crowd make the viewing experience seem more like mass entertainment (as the gig example) rather than the practice led exploration of ideas that gives rise to peer critique and debate, which is what I love about art.
or just that queueuing for an hour plus just seems an inordinate waste of time like sitting in a traffic jam, an experience best avoided.
Thanks for the Mondrian tip - good insider advice avoids being a tourist!