My point on artists is that maximising value extraction isn't their priority.
I worked in the industry for almost a decade, had 2 record labels, and signed a number of bands that became famous (for some definition of that) as well as worked with bands that were famous (for any definition of that)... so I have some experience here even though that experience has aged a bit.
Artists are balancing revenue now, with future growth, with record sales, with drawing in new fans, with taking the tour to as wide a representation of their fanbase as possible... and it really truly isn't as simple as "charge the highest price possible".
Far better models can be seen in sales of things like the Glastonbury Music Festival (real identity required, but administered by See Tickets) and Dice ( https://dice.fm/ which allows fan to fan resale ).
Those are better because 1) they limit the ability of scalpers, and 2) the fan-to-fan resale also allows flexibility (less need for thundering herd, as there are always people who cannot attend and now they can safely and respectfully sell to their peers).
Both processes generate a vast amount of data on the sales process, as well as the resale process - which better informs promoters of venue sizing and ticket pricing in the future. Both are good platforms for future evolution of fan-to-fan resale in a way that can enable more of the value to be returned to the artist whilst balancing the other criteria well. What they do is provide promoters with richer data, which allows promoters to make better sizing and venue decisions earlier.
To the separate questions elsewhere in the thread as to how to tackle Ticketmaster, the answer is to not fight them in their space... i.e. to not sell tickets for venues under their exclusive control. Here you see Dice succeeding as they focused on major nightclubs, including Ibiza super clubs... they're selling larger venues than most rock venues, on a daily or weekly basis... outside of Ticketmaster... with more revenue going to the venue, artist and promoters despite the ticket price only having increased a few % points. Ticketmaster control some large venues... but think of festivals, smaller venues, theatres, nightclubs... Ticketmaster really only are present for a small number of super-sized venues, more of the industry exists outside the Ticketmaster venues than in it. Don't go for the red ocean market, go for the blue ocean market ( https://www.blueoceanstrategy.com/tools/red-ocean-vs-blue-oc... ).
Data and time create a fairer market... not exclusive venue control or making people pay as high a price as possible.