High ticket prices have long been the bane of any concertgoer. But the landmark loss of entertainment giant Live Nation Entertainment, which owns Ticketmaster, in an antitrust trial has raised hopes that concerts and live events could soon be more affordable—though it’s unlikely to bring immediate and long-lasting relief. After weeks of trials that began on March 2, a New York federal jury on Wednesday found that the company was operating an illegal monopoly over large entertainment venues. The