I agree that ticketing is a difficult problem, but getting rid of scalping is easy if that's your primary objective. Pricing the externalities of event-goers is tough, especially when anti-discrimination legislation means you generally can't be upfront about it.
So there is the problem: The ideal of non-discrimination is not compatible with cases where the demographics of event-goers is itself a strong influence on the quality of the event for everyone involved.
Here's the new thread for posting quotes, with the usual rules: