Founded in 2004, with just a handful of people hanging out in a conference room, NY Tech Meetup has grown to become the largest Meetup in the world. With over 27,000 members, it is now a non-profit that supports New York’s growing technology community. What have we learned in the process? How are demos like magic shows? What makes a good demo stand out from a bad one? And how did a monthly demo event contribute to the growth of an industry?