I pretty much randomly went to see this show and it is one of the best shows I have ever seen. I could not stop laughing throughout the entire play.
Jewtopia is an off-Broadway production and is absolutely fantastic. The great thing is, tickets won't run you over $100 a piece; they are around half of that.
The show is great, espeically for American Jews. This is not to say that gentiles won't like it, but I think that they just won't get a lot of the humor and inside jokes.
At 22, I was the youngest one in the audience by about 40 years which surprised me a bit, but I would recommend this show to anyone my age or older. I plan on sending my parents to it the next time they are in town.