If you want to make a weekend out of it, I suggest camping at Tallulah Gorge State Park on Saturday --
http://gastateparks.org/net/go/parks.aspx?show=parks&go=1&s=0.0.1.5 In the late 1800s and early 1900s, Tallulah Gorge was one of the top tourist destinations in the Southeastern US. After the dam was built in 1913 it's popularity began to drop and after a fire in 1921 destroyed much of the town of Tallulah Falls, little was rebuilt. I saw on the web site where they are going to have the dam opened up that weekend to give a glimps back to the way the river gorge looked before it was dammed up.
It is a State Park, but the Campground is run by GA Power so you won't be able to make reservations online through the State Park System. For reservations call (706) 754-7970. In the past, the campground hasn't been anywhere near capacity on the weekend of this show, but you never know. If you know you want to camp there, I'd go ahead and reserve a spot. The campground is about 18 miles from the show.
If you want free camping, contact Tony Fullbright and see if they are offering free camping at the fairgrounds again this year. In the past, they have offered (but not advertised) free camping at the fairgrounds on Saturday night . . . there is no shade, no water or electricity, there are bathrooms, but no showers and camping is in what is normally the horse arena (so watch where you step and where you pitch your tent!) . . . but, it's free and you wake up at the show. Again, check with Tony (706-886-0228 / tasinga@alltel.net ) to see if you can camp there this year.