We were there a couple of years ago in October on a very wet day en route home. For various reasons We ended up staying on the campsite by the stadium which as others have said is well within walking distance. The campsite was an eye opener for us, being the first automated booking and entrance system we have encountered. On arrival you enter the lobby where a touchscreen system sorts out whether you want grass or hard standing, shows you the available pitches on a map and then sorts out the electric. To book you use a credit/debit card and it then spits out a hotel style door card which you then use to swipe the entrance barrier. Cute!!
The ceremony at the Gate was very moving and inspiring and despite it being a cold, wet October night, there must have been at least 150 people there including a lot of youngsters.