I hardly watch the race at all. any of them. It is a great viewing track though and you can always find a spot. Sunday does get busy but the super screens do the job and the view from the hill near the campground shop is almost the complete track albeit from a distance. Record it and watch it when you get home if you can (be bothered to watch it after your three days full of bikes)
The cafe inside the track is a great place to get a top breakfast and take a dump
your ready for the day then.
Don't bother building a fire just go for a walk and say hello to your fellow campers.