From Digital Media Thoughts:
Answer me this my fellow digital photographers: when you come back from shooting a bunch of photos with your camera, do you keep them all? Or do you delete some of them? I’m not talking about the blurry ones, or the ones that are too dark to be rescued. I’m asking if you delete photos that turned out well. Does the thought of that scare you? Do you believe that the real benefit of digital photography is the ability to shoot as many pictures as you want of the same thing, and keep them all? Then this article is for you.
Not everyone will agree with this, but it is an interesting article.