I attended a Porsche Corral at the Barber Motorsport Park for the Alabama Grand Prix this past April - see my post:
http://www.986forum.com/forums/showthread.php?t=24426 .
I was there for the event with an all-acess Operations Pass and so was there the entire week.
Being a PCA member (and an 'Operations' person) I was granted admission without paying a fee.
PCNA put on the event along with the local PCA chapter.
The people could not have been more accomodating. Hurley Haywood and Bobby Rahal were formal speakers, but also spent some off time at the paddock as well - how often do you get to rub elbows with the likes of these guys? Bobby Rahal was especially friendly, esp. once he found out I was restoring a BMW 2002, which he owned in college and also had just had an identical one restored for his personal use. I also am manufacturing and selling an LED tailight for the 2002's
(2002s.net) and Bobby also was very interested and in fact was our first customer. I even won a Panamera model in the question and answer competition for knowing the weight of the top on the Boxster Spyder (which I had just read about on the plane down).
I would highly recommend this venue for anyone interested in Porsches or the Porsche lifestyle and commeraderie.
While I didn't have to pay, after experiencing it, I would gladly pay to be able to spend time with a bunch of true Porschephiles.
Cheers!