Taking a picture of a really cool thing is not the same thing as taking a really cool picture.
I frequently see portfolios which display shots of things like a colorful wall of graffiti, a really unique building, or a very interesting looking person. These are all great things to look at and capture, but unless the photographer has given us a unique perspective, they're just journalistic shots. In headshot and model photography, we're starting with a talented and/or beautiful person; what makes the difference is how we perceive the subject, the styling, the lighting, the makeup, and most importantly--how we direct their energy and expression. Photojournalism is an art, but for shooting talent, you need to be a director.