I work remote and was offered a chance to move to the US. Exactly the same job both sides of the border but US pay was +30% and joint-filing cut my taxes significantly. I was also able to get a few health issues sorted that had been denied by provincial insurance.

The thing that really pushed me to leave though was housing costs relative to income. In Canada it has reached absurd levels. It was well into the 50% of take home pay going to housing. Here's it's less than a third.