For my money, the upper field is where the action is. I camped next to Gil and Kathy Machin - my good friends and veterans of 20 consecutive TSP's. If the weather was good, I would have ready access to their decades of astronomical wisdom. If the clouds rolled in, I would have pleasant company to chat the hours away. Having nice people to chat with is important.
Entertainment is hard to come by when there are no stars to look at.
The nearest radio or TV station that doesn't suck is about 400 miles away - and reading with a white light can get you shot. Setting up a tent at the Prude Ranch is non-trivial. There is almost no vegetation and the ground is a little harder than an average sidewalk. Leave your plastic and wood tent stakes at home. You really find out who your friends are if the wind is blowing 40 miles an hour.