Experts report a surge in interest among American academics looking to move to Canada
(www.thecanadianpressnews.ca)
The brain drain to Canada is a good thing, but the only aspect I would be wary about is the concern over wages that they cite. If the US government ever tips back towards tolerance, I'd brace for the possibility that a lot of these academics go right back.
I could see the possibility that the average Canadian school becomes more desirable than "good" American ones for wealthier students who want to study abroad. But even then, I am not sure that the money would be there without inviting the abhorrent system of US-level student debt, which I'd like to hope they wouldn't do.