Having only competed in it, I am not sure what it would be like to see it as a spectator. When it was at the Old American Royal site, where Kemper Arena was. It was fairly tight quarters. Friday night used to be the huge party night, for teams, sponsors & the local and National business located in KC. I have not followed it since 2015 when we last competed at Arrowhead stadium. I think it moved to the raceway the next year. Not even certain if that is where it is still held? If you are just looking to walk around and see the exhibits, and check in with a few teams big and small and see how they do things, a full day should be plenty of time.