Chief Delphi - FIRST -- Why do you participate?

The more experence I have participating in FIRST, the more I notice that the program really is made up of all kinds of people. So I found myself wondering... "What are everyone's reasons for being intrested in FIRST Robotics?"

To have some fun? To learn some stuff? To help others? To build a robot? To change the world? I can think of a million reasons why FIRST would be appealing! What's your view?

(Flame me appropriately if this has already been asked, but I didn't see it after a quick search...)