Alton Barnes isn't touristy at all. But the countryside is fantastic. Overlooking East Field, by Adam's Grave you realy get the impression of 'rolling' hills. You feel like you're on top of the world!
The Barge Inn is full of odd people in June/July, and I love it there! There is a room with a painted 'cosmic ceiling' depicting crop circles and other Whiltshire Wierdness. On a sunny day, sitting by the canal with a beer being overlooked by the white horse is just plain bliss to me.
I well can imagine that the locals get pissed off with the UFO crowd & the circlemalers, but I make a point to visit Avebury at least twice every year, once at Xmas, and once around late July to enjoy the scatty vibes. I know it's all rubbish, but I like it.