Metropolitan Opera

The Metropolitan Opera is very expensive these days...I had a friend years ago who achieved a childhood ambition of being a "supernumerary" ( that is, like a spear carrier) in a production of "Aida" at the Met.

Wikipedia says:

The Metropolitan Opera (the "Met") is an opera company, located in New York City. Originally founded in 1880,^[1] the company gave its first performance on October 22, 1883. The company is operated by the non-profit Metropolitan Opera Association, with Peter Gelb as general manager. The music director is James Levine.
The Met performs at the Metropolitan Opera House, which is located in the Lincoln Center for the Performing Arts on Broadway, in New York's Upper West Side. The Met was a founding member of Lincoln Center where it remains one of the center's twelve resident organizations.
The Metropolitan Opera is the largest classical music organization in North America. It presents about 27 different operas each year in a season which lasts from late September through May. The operas are presented in a rotating repertory schedule with seven performances of four different works staged each week. Performances are given in the evening Monday through Saturday with a matinée on Saturday. Several operas are presented in new productions each season. Sometimes these are borrowed from or shared with other opera houses. The rest of the year's operas are given in revivals of productions from previous seasons.
The operas in the Met's repertoire consist of works written in many different musical genres, from 18th Century Baroque and 19th Century Bel canto, up through the Minimalism of the late 20th Century. These operas are presented in staged productions that range in style from those with elaborate traditional decors to others that feature modern conceptual designs.