Fame

DPs are completely behind the scenes of a film. Not only do most people not recognize their faces, they've never even heard their names before. Even the most diehard film geek would be hard pressed to tell you the names of more than one or two cinematographers.

 
You might not be famous, but you can win a thing that lots of famous people win. Win? (Source)

Winning some of the major awards (like a Golden Globe or an Oscar) may give a cinematographer a brief bit of fame, but it's definitely fleeting. The average reality show contestant is better known than the best cinematographer. That said, an Oscar's an Oscar, so put that lil' gold man up on the mantle and leave it there for all the world to see.