Yeah, there has to be some sort of finishing prize, otherwise no one will take part in doing something that they dont get something for (unless they work for a project, thats a bit different because it is "Ceditable"). Like for DBU, we have a HUD contest going on. Gawd, you HAVE to check it out. Xstortionist made one and im guessing he is gonna win lol. The prize is credits and a custom model made by yours truely (WHO CAN TURN DOWN SUCH AN OFFER, RIGHT!?
).
Anyways, I guess its not much of a prize imo, but the people participating sure look forward to winning, if not then they are having a good time ^_^.
But yeah, the moral in all I said is........uh........You need a prize :S
[EDIT]
For the sense of competition? Nothing wrong with that, other then the fact if they do it for that reasons there could be attacks and stuff on one another. Better stick to the prize idea