This is an unscientific study, to be sure, but I've noticed a trend that I don't really understand.  Summer festivals which host multiple music performances rarely include classical music.  OK, that's not entirely unexpected.  What I do find odd is that the few scheduled events often charge admission in a largely free event.  Is this because the festival sponsors don't pay the classical musicians but they do pay the others?  The classical musicians figure their fans will pay so they might as well charge?  Something else entirely?

For example, the Central Pennsylvania Festival of the Arts held at State College, PA had a total of 66 free concerts.  One of which was free, and that was a Suzuki demonstration so it's very doubtful anyone but parents would pay for that event.  12 of the paid events were mostly theater based and 4 were classical music.  So 80% of the classical music events were fee based while 18% of non-classical music charged admission?  Festivals draw widely diverse audiences so this would seem to be the perfect opportunity to hold a free event with the hope that you'll gain fans that you'd normally never reach.  I'm sure I'm missing something here.