> [...] imagining how to maximize the profits for a single event
No, I am not interested in maximizing profits. I am only interested in eliminating resellers.
> Circumstances such as the fact events are generally a part of tours, that the artists likely want a diverse audience, that event sales have side effects on future sales and marketing, etc etc.
That's exactly my point: if currently tickets are grabbed by automated systems and resold for much higher prices, none of these goals are reached by the artists.