Who put who out of business?

From Neil Gaiman:

My local bookshop (now deceased) was physically arranged so that finding a book and then buying it was harder than walking around around the shop and going back out again; the bookseller mostly sat at the cash register in the middle of the shop playing online chess, and he tended to be unhelpful, vaguely grumpy and to treat people who wanted to buy things as nuisances (he was nice to me, because I was me, but still); he didn't stock paperback bestsellers because "people could always go to Wal-mart for those" and when the she shop closed its doors the final time they put up a note on the door saying that it was Amazon.com that had driven them out of business, when it manifestly wasn't -- it seemed to me that they didn't work to entice people into the bookshop (which is what those paperback bestsellers were for), and didn't give them a pleasant experience when they were there...