It's just the bragging rights for now.
I'm still in the process of building the AMV culture in Milwaukee, so none (or very few) of the editors end up coming and my screenings have typically been...smallish. This year though, I was able to fill my room on Friday (and then some. My best guess is ~80 people,) and did good on Sunday (~40).
Might be sending certificates out next year, but I think we're still a ways away from trophies.