Saw a segment on T101 (DirecTV Channel) spotlighting this gun show. The TV show was called "Fully Automatic America". Take the show for what it is worth if you get a chance to see it. The reporter did seem fair and balanced, but I would need to watch it again for a better critiquing because the shock and awe factor of the visuals destracted me from whatever he was talking about.
Anyhow this gun range in North Central Kentucky (on the Ohio River I believe) has a machine gun show twice a year. You can go and camp and just watch at what looked to be resonable prices. They also had live fire rentals (at some damn salty prices from what I saw on the show). From 50 BMGs, full auto ARs, mini guns and flame throwers.
Has anyone ever been??? I'd like to make the trip as I am about 3 hrs away. Here is a link with some embedded video. Sweet Stuff!!!