Australia is a different dimension altogether - you have a lot of the trappings of Western (US/European) culture, but none of the advantages of access to a free market. Personally, I can't stand Australian culture, nor American either these days - which isn't to say I'm launching into an adopted German/Austrian stance, just that .. being away from these lands for a decade at least in each case, I started to see the shine wear off long, long ago.
Quality of life is pretty high in Australia, though, I have to admit. Nothing quite like hitting the beach after work - which I did a few times in LA, only to get a horrendous infection. But, still, I am lucky enough to choose my path and I am for sure never going back to Australia to live. Or, LA/USA.