The place I bought it for is now selling it for £84.36, so 14p better than you have found. I can't remember exactly, but I think I paid about £10 less than that by 'pre-ordering' a good while ago.
But I think I would check with them first, the page says "pre-order" but also says "in stock", which is slightly confusing! (edit: I guess that's just their shop's software though, otherwise it wouldn't allow the sale of any pre-orders.)
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