Think, for a moment, of the countless happy childhood hours you spent with this amazing device: Drawing perfect horizontals, drawing perfect verticals, drawing really spastic diagonals, trying to scrape away the silver powder from the window so you could look inside.
You become successful, the way I see it, only if you're good enough to deliver what the public enjoys. If you're not, you won't have any audience; so the performer really has more to do with his success than the public does.