I don't mind the group getting bigger--that means a larger pool of projects, and a larger variety of presenters. But, if I only have space for 50 people, and 50

I don't mind the group getting bigger--that means a larger pool of projects, and a larger variety of presenters. But, if I only have space for 50 people, and 50 "leechers" RSVP before I have 7 presenters, that's a problem. Sure, they could be there because they are curious and, like I mentioned, even be contributors in some way (maybe they brought 4 of their friends from their CS program or something), but at that point we don't have a show. Maybe the term "leecher" isn't a good fit for what I'm talking about, but that's the basic problem. We ultimately need some percentage of people willing to present that have interesting projects, or the group can't survive.