Books in Australia are too expensive!
That's an established fact on which Bob Carr, the former NSW premier, wrote an insightful article in The Australian.
I buy many of my books online from the Book Depository in the U.K. whose prices are often half, and usually a third below, the Australian retail price. And they offer free worldwide delivery!
After my first acquaintance with Julian Barnes through The Sense of an Ending, I have ordered five more of his books - from the Book Depository, of course: