Australia is a brilliant idea. Masses of land, low cost of living, drive on the correct side, they understand that your "mate" doesn't necessarily mean your significant other.
Only problems for me would be:
1) Lower cost of living means you earn less so it doesn't really offer much advantage in the long term (other than you have more space)
2) It's a really long way away from everyone I know, apart from the few who've moved to Australia... even they might be thousands of miles away if I moved to the opposite end.
3) They serve beer in really small poofy glasses. I used to think that the characters on Neighbours were ten feet tall due to their appearance when drinking in "The Waterhole". Turns out Aussies just drink beer out of a tart's glass.
4) I couldn't stand the whines and jibes everytime we beat them at a major sporting event (so that would be 2 or 3 times a decade then
), nor being called a "whingeing pom", even when not whingeing about anything.
5) Those corks hanging off my hat would really irritate me.
6) I feel dizzy if I stand on my head for too long.