Anybody wanting to buy a table had to enter this as a sponsor, which had two adverse consequences: a) it was hard for attendees buying tables to find how to do so on the site (we had to speak with a lot of folks to advise them how to do this); and b) generating reports of attendees was difficult from an administrative perspective, because accessing information about individuals and sponsors have to be done in two different ways. We view individual purchasers and table purchases (other than a true sponsor, such as a corporation) as the same thing.