I actually need your opinions(MMA Vender Relatled)

I'm doing a show in Frisco Texas June 11th at the Dr Pepper Arena. I have been out of the game for a few years and have no idea what to charge guys that want to set up a booth. I have heard some costly fee's and back in the old days I would have given it away for free. However, now that MMA is buisness I have to charge something. I'm thinking about $500 with the venue taking 10%. (The 10% is what the venue charges)

What say you?

My last show was 5,300. Pre TUF at that too.