[EricH]

The purpose is to cool components that you think need cooling. Unless, of course, you can come up with some creative method of using them to move air for other purposes.

It might be more necessary than you might think. I know 330 used some on their 2003 robot to cool the drill motors used in the drive, but not on their 2004 robot, even though the same motors were used in the same place. (They just weren't used all that much in the matches...)