We're trying to figure out how to fill up PS with cool looking templates, considering we have no dough to spend. I'm not a huge fan of contests (hmm, wonder why...) so I thought I'd ask you folks what you think motivates people to offer their design chops up for free?

A chance at a shuffle?
Being listed prominately?
A chance at advice on their work?
Just the chance to have their unadulterated work used?

I'm curious, and puzzled.