Computers vs. Live Music

The point of this post is to demonstrate how true, talented artists always sound better live. They re-create their sound, and present it in a new light. 'Ye, N.E.R.D. and The Roots crew, are just a few examples of artists who are seriously talented.
And on the other side of the spectrum you have a pop singer like Ashlee Simpson, who in my mind has not mastered the art of performance, or her voice for that matter...I didn't even use the rose bowl clip, I was being nice.