@ Kent, It was on Sunday, 2 hours before Expo closed, it was a spur of the moment thing and was not planned...
Just something of interest, I sent Steven, the organiser of the Expo an email to find out what the head count was with all the other expos and shows going on at the same time.
Steven says that this Expo was the busiest, with a head count of 5500 people through the door.