For having played a few games at Micromania Game Show in France in 2007, I must admit it's not such an easy task.
Putting aside the fact that you have to play standing up with a lot of people watching you, talking, and stuff like that, the real issue is the several other games next to me which didn't let me listen to the sound of my game. Braking while hearing a accelerating sound, etc.

Well, in those videos, the players sucked but, they aren't helped at all ^_~

PS : having played at a private event organized by Sony with a limited number of people, before the launch of the PS3, sitting in comfortable sofa, or even laying down with the display above me was pure happiness.