I like Lonely Planet and its guides, but I think that it is time for them to either abandon or change the focus of this country-wide guide. In the meantime, I am relying on their series of Australian State guides for my next trip.
I think the intention of this book is to give insight into what is available where... then select the relevant lonely planet guide for the area that most interests you.
A lot of people don't know what is where in Aus, as an outline to learn... I think this book serves anyone very very well.
It's much cheaper to buy this book.. and choose where you want to find out more about... than buying the complete series of lonely planet guides in the Australia range.