Just wanted to put a site out there that some folks may not know about. Before buying ANY book on eBay, check out www.bookfinder.com. It's a massive search engine for online bookstores. Almost any book can be found there, often MUCH cheaper than eBay.
I realize this doesn't help the book sellers here on TC, but it sure helps out the buyers. I looked up the book Tikifish mentions and the price range came back from $4.85 to $17.