I am a fan of Broadway lotteries and have seen a number of shows this way, including The Book of Mormon. Check out my first Mormon lottery attempt here.
However, Godspell (currently in previews and opens November 7th on Broadway) has upped the lottery game and is introducing a post show lottery in addition to its pre show lottery. According to the website:
The stage door lottery will be held at the main entrance to the Circle in the Square Theatre following each performance. Any person with a ticket from that performance can enter for a chance to win. One winner will be chosen at random after each performance, and that person will be escorted backstage with one guest, where they will get an exclusive glimpse into the behind-the-scenes workings of GODSPELL.
How freaking cool is that!!! I don't think that I've ever heard of any shows allowing the typical audience member back stage. The Commercial Theater Institute (CTI) has a Behind the Scenes program this season; however, the behind the scenes seem to be primarily talkbacks.
Hopefully other Broadway shows will follow...