If they would simply sell tickets for the prices people are willing to pay in the first place then they wouldn't need to invade privacy or any of this stuff. I've heard the arguments they use to justify why they don't and they're all hogwash.
What is wrong with market price?
The space at a concert is limited so some form filtering will have to happen, but if the only metric is market price that's a pretty sad society specially when we're talking about culture IMO
The way I see it, it is also highly likely that the person paying more is of average income and just convinced themselves to pay more because they are superfans
The point I'm making is that market value reduces the problem to just money which is being taunted as a magic solution, which might work in some cases but market value doesn't exist in a vacuum and it has side effects. As the topic being discussed is culture it introduces a lot of biases into society that I would find problematic.
Also, if we want to talk in pure capitalist terms, Ticketmaster is already a monopoly of sorts in the music buisiness, there's no "market value" if there's no pressure to lower prices, they can make the experience as bad as possible without repercussions other than people not going to concerts anymore which as a society would suck