Growing old in NYC

The New York Times recently posted an article on how the city was looking to improve the life of its senior population.
http://www.nytimes.com/2010/07/19/nyregion/19aging.html?pagewanted=2&sq=anemona%20fast-paced%20new%20york&st=cse&scp=1

Some readers have responded to this favorably by saying the city is ideal for seniors as it is equipped with a great transportation system that allows seniors to go anywhere and be independent.

http://www.nytimes.com/2010/08/03/opinion/l03elderly.html?_r=1&partner=rss&emc=rss

My husband and I often think of this period in our lives and wonder whether we will still be living in NYC. Granted the city has a great transportation system but how many subway stations are equipped with working elevators? I have first hand experience with this as when my eighty year old mother in law visits from London she always complains about going in the subway due to the stairs she has to climb.(London's stations in contrast are equipped with escalators if not elevators). Moreover what of health care? will it finally become affordable? all these issues will ultimately help us to make a decision to stay on in NYC or move to Canada or the UK or even India though I am none too happy about it. Do any of you think of these things or am I way ahead of my time?