[

Cradoc Bagshaw - A Picture’s Worth](http://blog.photoshelter.com/corp/2009/06/the-value-of-a-stock-photograp.html):

It’s possible that you might have to battle with one client to get paid $150 for the use of a photograph yet you might get $15,000 from another client for the use of the same photo. What makes the difference?

The answer is image uniqueness, but this may not be what you think it is.