I have ordered my copy of WordPress for Dummies over at Amazon (including shipping) instead of getting it at my local bookstores because it is cheaper!
Total: S$38.38 (US$26.47 x 1.45)
Local Bookstore: Popular/PageOne
Local Bookstore: Kinokuniya
I made a saving of S$3.62, even though it is quite insignificant, it is still money. And the time taken for the book to get delivered to me (Amazon)/waiting for the book to arrive (Local Bookstore) is about the same.