Thumpin, it is worth going without a car. This was my first time, and it was great. More money for the swap meet would have been good, but I managed to spend all that I had budgeted, and got some good stuff I have needed.
My main regret is that I didn't get to really spend some time watching the racing and checking out the cars on display. But between wheeling my wife around in a wheelchair and the heat trying to kill me, I was happy just to see a little racing and managed to see the whole swapmeet section.