A theatre company in Seattle has started a "subscription" program, where you buy a membership, pay by the month, and then you can see as many performances as you want, as often as you want. It's a building that houses four theaters, so it's not like just going to the same play over and over again, either.
Would you do this? Subscribe to a theater like it was a gym? I know I would; it would be amazing to be able to go see so many plays! Any night you don't know what to do, you have a built-in activity that's exciting, colorful, and, if not educational or cultural or edifying (which arts performances have a reputation for being), at least pretentious! Which, in my book, is the next best thing. :)