I live in a neighbouring village to Fairford (far enough away to not be bothered by it - near by to enjoy the view) and enjoyed a great free air display, with the Wing's FM commentary. With regard to ticket prices I started off thinking it was outragous, but by the end of the weekend began to see that the sheer number of planes and top display teams could justify at least some of it.
The formatation of herc's, as John says, was special.
Apart from that it was well organised this year. Our village is on the route used for VIP's and the coaches, and the only hiccup was when one of the rail link busses ripped it's fuel tank out and dropped 40 gal of desiel on the road, which stopped us getting back into the village without a 10 mile detour!
For value for money I always think the Goodwood festival of speed and revival meeting are excellent. Every year I come away thinking that 25-
35 quid was cheap for what I have enjoyed.