In response to your other question about price, I guess it depends who are on. I think for a smaller, less well known band, you might get the equivalent of £15, maybe £20. But for the bigger bands, like say Metallica, you really could get away with a premium price, especially if you offer a VIP Section. Maybe something like what they have at Glastonbury Main Stage - a special broken out section right at the front for other artists to watch. They love 'VIP' here...