The Monty Python musical Spamalot will close on Broadway on January 18, 2009 after its 1,582nd performance…a very nice run, indeed. As a point of comparison, that's more than Mame, The Sound of Music, The Music Man, How to Succeed in Business Without Really Trying and a number of other musicals that are regarded as classic hits. The national touring company has bookings scheduled through the early months of the year and then it too will probably close down.
If you haven't seen a production of this thing on stage, you might want to hurry to one. I'm sure it'll be around forever in college and community theater…but it'll be a long time before anyone stages it with a Broadway budget and (probably) that level of talent. Like Young Frankenstein (which is scheduled to go on tour beginning in the second half of '09), the money is part of the show. It'll be interesting to see how various groups mount Spamalot without a lot of cash, and it wouldn't surprise me if ingenuity could more than make up for spartan costumes and sets. But you oughta see it in all its lavish glory while that's still an option.