I've never watched that movie (Is it even out?) but it looks very, very funny and interesting. With the little knowledge of the movie's story I have, I cannot say for sure that it would be good to have a sequel. It definitely would attract many people, if not more, than the first. But then again, there is the speculation that making sequels for a really good movie will sully the first movie, much like Grown Ups 1 and 2... I personally didn't like the first movie and I don't think the second movie did it justice.
Ultimately, it is up to production to decide whether a sequel is worth it. (Or so I'd like to think)