for several reasons, including financial issues, prior engagements of the performers, or temporary availability of a theatre between the end of one production and the beginning of another. However, some shows with planned limited engagement runs may, after critical acclaim or box office success, extend their engagements or convert to open-ended runs. This was the case with 2007's August: Osage County, 2009's God of Carnage, 2012's Newsies, and 2022's Take Me Out. Historically, musicals on Broadway tend to have longer runs than "straight" (i.e., non-musical) plays. On January 9, 2006, The Phantom of the Opera at the Majestic Theatre became the longest-running Broadway musical, with 7,486 performances, overtaking Cats. The Phantom of the Opera is scheduled to close on April 16, 2023, soon after celebrating its 35th anniversary. Audience Attending a Broadway show is a common tourist activity in New York. The TKTS booths sell same-day tickets (and in certain cases, next-day matinee tickets) for many Broadway and Off-Broadway shows at a discount of 20 to 50%. The TKTS booths are located in Times Square, in Lower Manhattan, and at Lincoln Center. This service is run by Theatre Development Fund. Many Broadway theatres also offer special student rates, same-day "rush" or "lottery" tickets, or standing-room tickets to help ensure that their theatres are as full—and their grosses as high—as possible. According to The Broadway League, total Broadway attendance was 14.77 million in 2018–2019, compared to 13.79 million in 2017–2018. The Broadway League also reports that approximately 66% of all Broadway tickets were purchased by tourists in the 2012–2013 season, an increase of three percent from the 2011–2012 season. By way of comparison, London's West End theatre reported a total attendance of 15.5 million for major commercial and grant-aided theatres in central London for 2018. The average age of the Broadway audience in the 2017–18 theater season was 40, the lowest it had been in nearly two decades. Off-Broadway and Off-Off-Broadway The classification of theatres is governed by language in Actors' Equity Association contracts. To be eligible for a Tony, a production must be in a house with 500 seats or more and in the Theater District, which are the criteria that define Broadway theatre. Off-Broadway and Off-Off-Broadway shows often provide a more experimental, challenging, and intimate performance than is possible in the larger Broadway theatres. Some Broadway shows, however, such as the musicals Hair, Little Shop of Horrors, Spring Awakening,