The horizontal control of venues is only one issue. A perhaps bigger issue is the vertical integration (if that's the right term) of first-party ticket sales and resale in one company. Ticketmaster has no real incentive to try to prevent resellers from buying up all the tickets on first sale, because it gets to charge fees on all the resales through its platform. The more times a ticket is resold, the better. I don't…
Current primary and secondary ticketing markets are not ideal, but this proposition disenfranchises whole market segments from consuming art as experience based on economic factors. That's bad for art, it's bad for artists, and it's bad for consumers.