I have seen recently on amazon marketplace some bargain prices for DVDs from reputable sellers even though they are selling it more expensive elsewhere. eg. Taken (6 disk set) RRP £49.99 dvd.co.uk (own site): £13.99 http://www.dvd.co.uk/product.asp?id=8300102 dvd.co.uk (via amazon marketplace): £8.98 http://www.amazon.co.uk/exec/obidos/tg/detail/offer-listing/-/B000088T1K/new/ref=sdp_newd_h_/026-6915414-8845252 How can they do this? Is it a bit more risky dealing with amazon marketplace? Am I missing something here?