Ticketmaster is the perfect way to demonstrate to Libertarians that the unchecked free market doesn’t end up providing the best service for everyone. What you end up with is powerful companies running profiteering rackets, and using their status to keep out competition. If companies had their own way, their customers would have no choice about using them, and would still get screwed.
— Reddit commenter seladore, noting that Ticketmaster is a good example of how monopoly markets can ensue from a lack of oversight and regulation.