Best price around for a NEW copy.
Part of blockbusters deal of the week offer. MW2 is also trading in at £25 there which seems pretty high.
Also, I'll try and get proof up soon, although if it is store only then it'll be expired anyway. For anyone wondering they were on the shelf with other deals such as Tekken 6 £19.99 etc, but WaW was the only good price compared to what you'd find on the net.