Imagine you are launching or running a startup and there's a place where all of your developers—the biggest expense for most tech companies—cost one quarter what they do in Silicon Valley. Sure, it's cold there, but talent is plentiful and the locals are friendly. Would you trade your hash browns for poutine?

Adam Adelman, co-founder of Mighty Cast, a startup working on a new kind of wearable technology, recently told me the Canadian government is paying almost 80% of his developers' salaries. And that's not a tax credit....