[cdcarter]

No, it just means Ticketmaster is the exclusive provider of box office services.

That is a potential disruption model (if you could manager actually buying/building a venue) but there's a reason (commercial) venues almost always require you to use their box office services. Often times, the venue gets rent in terms of a flat fee plus a cut of the net adjusted gross box office revenue. A bigger show puts more strain on the venue and they'll want a slightly larger cut. The venue then wants to oversee the settlement, and, therefor, the box officing.