The cure did this, we got tickets a few days before the shore, bought from reseller directly through ticket master but they could only be relisted at face value, got 8th for $75 I think, it was a great show
Matt Haney is trying to do something with AB 1720 (Resale Price Cap), and Ticketmaster is supporting it. https://leginfo.legislature.ca.gov/faces/billNavClient.xhtml...
I am not sure why a bill would set some magic and arbitrary percentage other than 0%. This has likely be negotiated with the industry.
Unless Ticketmaster takes a significant proportional bite at every resell, nothing prevents scalpers to triple the price of the original ticket, but reselling in a loop.