Well, something I'll say is that the cities that are considered desirable change over time. I don't know how it is with Sydney, but just in the last 30 years in Los Angeles Culver City has transformed from a more modest neighborhood to a high tech hipster place with soaring home values.

So instead of focusing on the places you can't afford, why not focus on building up the communities in the places that you can? And who knows, maybe 20 years from now, that community will be considered the more desirable place to live?