Then do more shows in the same place until demand is met.
Sure, it's exclusive when tickets are only available at high prices, but surely, you understand that to be the wrong kind of exclusive!
The artists will pretend like they're performing for the fans, being the good liberals that they are - in reality they're rich partly because of exclusivity.
Most people go to a show to enjoy the show, not to revel in exclusivity.
Also, it's weird to use "minimise audiences for exclusivity" in a thread started by "maximise audiences for side-channel sales"...