OK I will stir the pot a little more.
I was about to say that most people believe that to be a "bodybuilder" you have to compete. No!
Who ever decides to build up their body, no matter how they do it, is considered a body builder and my personal training books documents this.
I'm a non-competitive bodybuilder because I enjoy being in top shape and I think that a personal trainer, which I am, should reflect a certain image to his or her clients.