Of course, the promotees have no voice in this process. Maybe they would WANT to put on their show to the poor rather than to the rich.
Nobody is stopping them from renting a large field somewhere and charging a buck or two a person, heck, even just putting out a barrel and telling customers to pay whatever they fell it is worth for that matter.
Let's keep this whole issue in perspective. Concert, sports, theater, etc... we are talking about entertainment here. It is a luxury item, not a neccessity.