Social Security is sucks.
You cannot use it to live on cheaper country abroad. If you try to use it to, say, live in Argentina, you must go back to US every month because after a month, Social Security will stop send you any money.
But why do you want to live on cheaper country such as Argentina? To save money, especially in these economy. But you shall forget that, because after factoring the cost going back and forth, you'll end up losing money.
All the while, you are a lower income retiree, you do to save some of the money. But forget that, after you paid Social Security your whole life, you just cannot have it.
Social Security is not your rights.
Social Security is government scam.