I wonder if this is yet another example of Australian readers being shafted by parallel importation laws, so that Tim Winton can make a few extra bucks.
Given that Tim Winton piped up last time abolishing parallel import bans was floated, I'm going to go with ... Tim Winton.
It wasn't for his benefit, you understand. He was reluctantly arguing for the price of his novels to be artificially propped up so that other, less successful authors could also be propped up.
The sooner the Australian publishing + bookselling industry dies, the sooner a newer, better model can arise from it's twitching corpse.