Earlier quoted context omitted.
This rings true and people always seem to forget that it's much easier to innovate when the cost of living is lower. I'm currently living in Auckland, New Zealand, which by NZ (and world standards I think, though can't cite anything off hand) is quite expensive, but myself and my girlfriend have been contemplating moving to Sydney, Australia, a city which is one of most expensive in the world but where we would both…
As an Aussie/Kiwi dual citizen in China, I wonder why you don't consider moving to Asia. Sydney, where I was born, is ridiculously pricey, and while the harbour is beautiful and the city fairly green (in parts), it's not really that international and the quality of life doesn't actually match the image once you start paying taxes and cost of living. That said, it's a safe choice.
There's not many "perfect" options.