Up here or down there?

After losing another two Europeans to Australia I'm wondering what's so special over there? It can't be the language and it can't be the culture. It could be the weather or it could be the nature. Or is it something completely different?

Since I've been living in London I can see two different streams: loads of Europeans moving to Australia and loads of Australians moving to London. I can understand the second stream as the Australian nation wouldn't exist as it is nowadays if the Britons wouldn't have formed this continent as they did back in the day. So why not going back to the roots? But even if trying hard I can't think of a really good reason for moving from Europe to Australia. I mean I'm still struggling to understand them. Is this English or something else? And I still believe that the Australians are not as beautiful as the Europeans tend to think. Obviously the weather's better there but there's still winter in the south where most of the aussies live. Why moving to the other end of the world without any good reason? Because it's the other end of the world? Potentially... You might want to ask: Why moving from Vienna (the city with the highest quality of life on the globe) to London (a rubbish metropolis where nothing works properly)? Because of experiencing another world? Because of improving international competencies? Because it's exciting? Potentially...