I'm being serious for once. Of course the bars turn as fast as you steer, but with a larger wheel it takes more effort to turn the bars. Isn't it better to have a bike you can flick between obstacles, rather than having to muscle it through?
True, but at anything more than walking/jogging pace the bars aren't turned more than 5-10deg?
Most people complain that their bike is too twitchy and needs to be lower/slacker/longer, which is odd as a 29er effectively gives you steep twitchy angles, but the wheels add more and more stability as you pick up speed (as well as the naturaly long wheelbase resulting from the longer forks and chainstays).