I never buy from Amazon. If it's a new book, I get the info and order it from my local brick-and-mortar independent bookseller, whom I hope remains in business and thriving for a long time (I hope to live in this town for a long time -- I hate moving!).For hard-to-find used stuff, I generally will look first at half.com and bookfinder.com; if they don't have it I"ll try to get it through Ebay.
Alex