I'm not quite sure as this will be my first year attending but after 6yrs they must be doing something right. The show is open to the public so people who are not in the industry may attend. I don't see this as a problem as I've attended both PRI and IMIS and while I loved both trade shows I don't really see the reason why it needs to remain industry professionals only. I believe the weekend warriors out there keep the performance aftermarket going.Most people migrate to the PRI show in Florida. I haven't heard of this one...what kind of turnout do they get?