http://www.cic.gc.ca/english/skilled/assess/index.html
That is their online self assessment test to see if you will qualify as a skilled worker.... if you plan on immigrating as an 'investor', then check out the asset requirements and see if you fit. Regardless, I suspect that as many boomers begin to think about health care in their golden years, they will look north to Canada. Will many go? Who knows, but if enough do, you can be sure that Canadians will not be as inviting as they are now.
Canada has some laws favorable to resident aliens and their assets (ie: tax free), so many wealthy folks will renounce their US citizenship and become resident aliens in Canada in order to shelter their assets. Is this really what you want? Do you have enough assets to justify this? If so, google around, and you will find some of the several 'how to' guides for using Canada as a tax shelter.