We call that area down south, Green Acres (Fond du Lac was already taken for the south end of Vintage). It was a bit rough the first year, but last year it is getting better and hopefully even so this year. The problem was that it takes several years of rolling it and using it for something other than a corn/hayfield (which is what it was) to get the ground smooth enough to be practical. That area also has severe drainage problems, a good chunk was underwater in the past. But this is part of the EAA's stated goal to not turn away planes by 2020.
Frankly, Vintage is a great place. You're right in the center of the show (the show center line is about 30 feet past the north end of vintage). As a "showplane" (which is what you are if you're eligible to park in Vintage) and a Vintage member, they'll also give you a souvenir beer mug and a plaque with a picture of your plane. About the only downside is that the PA speakers run through most of Vintage so you'll get the yodeller and the inane airshow announcers jabber.