If you are serious about start ups (as in you want to accomplish something big), you should move to SV.  Outside of SV, it's hit or miss (maybe your current start up will work, if it doesn't maybe you hit on the next one).  If you move out to SV, you'll realize there is an ecosystem and an industry for you to 1) have a career and 2) meet people that are passionate about the industry and are like minded and 3) yes, you'll see more and be exposed to more and different parts of the industry (there are co's out here doing great in areas you'd never normally be exposed to).<p>But if you want lifestyle, Australia is probably great.  If you want to be on the world stage, well, SV is it.