I could probably double my salary again moving to the US but I don't want to stay in a place that doesn't have a solid route to citizenship. The TN visas being temporary, non-dual intent and not allowing my spouse to work. Maybe my company will transfer me on an L1.
Also, there was as story on the BBC today about a firm that can't hire software engineers even offering 100k in compensation (which is pretty good for the UK). I rarely see postings for positions that pay this much. London salaries seem to cap out at around 60k which is peanuts considering how expensive the city is.