While dear Mr. Gould had different reasons for ending his concert career one can only imagine what Glenn would have to say about the kind of activity you comment on.

I cannot afford regular or even semi-regular live concerts but when I do save and fork out the dough it is because I honestly want to *hear* the music, live.

Last year I took my wife to a symphony concert. It was a big event for us. When, for the third time I spoke to someone nearby asking them to please, be quite, it was clearly I who was perceived as being rude. And not only by the offender I spoke to but by another patron who addressed me saying, "If you don't want to be here, leave."