Something to consider. Health can be a very fickle thing and often people don't just die suddenly in their sleep. My father (a US citizen since birth) for example got sick with a cold/flu and got bronchitis and as a result went to the hospital and there he acquired C-diff. To make a long story short, this was the beginning of an almost 3 year long and very unexpected battle which, sadly, he lost in the end. Now, I am pointing this out because in those 3 years it required multiple stays at long term care facilities/rehabs as well as hospital stays and constant battles between private health insurance and Medicare and Medicaid, hiring an attorney to sort it all out, and basically draining him of any penny he had left. The expense of the overall care was enormous and I can't imagine what would have happened if he was an aging, recently arrived immigrant with no or minimal healthcare coverage (and most won't cover LTC).
Now, if someone is flush with cash maybe it's not something to be concerned with but the worst case scenarios should be considered carefully when making these kinds of decisions. In any case good luck.