I have never been to a show there but my guess is that is a sort of "picnic on the grass" type crowd and those people expect to sit on their picnic blankets during the show! Haven't been to a gig there, but I'm told this description is fairly accurate (similar to gigs I've attended - including one by BF - at Kenwood House in Hampstead, London).
BTW, tickets went on advanced sale this morning (general sale from 7th March); J.O'B posted a link on the VRM home page on 3rd Feb.
Tickets are £37.50 unreserved or £46 reserved (plus £2.50 booking fee per application, rather than per ticket; I think you can buy up to 6 tickets); the latter allow you to turn up later* and still access an area closer to the stage (mind you, I think I read that admission only starts at 6 p.m. for a 7.30 gig, although I guess that's when Ms Bextor assaults our ears!
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