I went off to Elliott Bay YET AGAIN and this time they had one copy on the shelves of Autobiography of Red, not displayed anywhere near the hardback face-out copies of Red Doc. I snatched it up.
Bespectacled Bookstore Clerk Guy: "You were in here looking for Anne Carson before...."
Moi: "Yes, you have one copy!"
He then praised Beauty of the Husband as his favourite Carson, which I hadn't read. I in turn told him about Antigonick, which he hadn't read. Amazon got no money. A good exchange.
(I also got a copy of Plainwater.)