> extra profits generated by dynamic pricing are going to ticketmaster rather than to artists.

The artists get paid. Even back in the days "scalpers" were largely selling tickets that artists ear-marked to be sold at market prices. It gave them cover for high ticket prices by selling a few at "official" prices, while letting them earn market value on most tickets sold.

And anything the scalpers couldn't sell would be put back on ticketmaster at the official list price. And people would get an email about how they "found" more tickets to a show.