Not even- and I make this observation fully aware that it is shocking- Tasmania
It's a very nice place, if you ask me. Hardly an economic powerhouse, but the climate's quite pleasant, as is the scenery. Not to mention, all of the historic towns and even railroads.
Though I will say don't travel there by ferry overnight unless you're willing to shell out for an actual cabin. Otherwise, you're going to have a very bad time.