The US is the NBA, the stars definitely do go there. A pretty good life strategy is to work in the states from 30-45 while you're young and healthy, then come back to Canada for peace and safety to raise your family. I've seen a few people do that. I'm not sure it ends up being that bad for Canada. On the one hand they lose stars during their productive years, on the other hand they come back during their spending years with more money/knowledge/sophistication than they would have had.