I read with interest the other day a news story (think it was on the bookseller and I will try to dig out the link) about asda starting a books price promotion.
Up to now the supermarkets have not been a great source if books because of the lack of choice. But in Sainsbury's today I picked up a copy of the damned united by David peace. Because of the film the book has made into store but at £4.99 it is. Sving that can't be sniffed at. J put it in the trolley and certianly if the choice was wider the liklihood is that I would buy more books in the supermarket.
But I think most decent bookshops can rest easy for the moment because the choice remains poor and the space put over to books miniscule.