You could spend as much as two days trying out every video game or console demo at the event. It just takes up so much space and they are so spread out. Its quite easy to zone out and forget which booths you have already visited. Sensory overload starts to set in after day 2 of games, swag, and trying to keep track. The major software, video game, and hardware vendors spend a couple days giving their lectures and promotions of upcoming titles and releases.
Check out the full article at Virtual-Hideout.