In a meeting this afternoon, heard someone from one Expo pavilion. They have one of the longest lines in the expo site. The interesting finding they have was, the long line has acted as a biased filter. Most of the visitors coming to the pavilion are either labor workers, or old people – people who are less sensitive in time. They also want to attract people with higher education, or at least between 20-40, but they are just big fans of waiting in the line for hours.