I split my life almost equally between BA - Florida and Massachusetts -- living at about the same temperature year round. Advantage plans paying a zero copay are fine for those I believe living in one locale. You go to the doctors within their groups. Referrals are necessary. Old Medicare - no referral is needed. One can live anywhere in the USA including territories and always be fully covered. there is no extra payment. The lowest monthly payment is somewhere around one hundred dollars a month. then part B you need another insurance and part D another too .. It all does add up. Also, if your income is above a certain figure then you pay more for all of these coverages too. I pay less now than when I worked. To me medical coverage is important. I guess if you figure you will always live in Argentina then you might be fine to drop the coverage. Problem is you do not know if one day you might have to exist Argentina for reasons we cannot predict today. I think your 130 a month is good insurance to keep. You know how your pocketbook is looking -- I think whatever coverage you are holding is significantly cheaper than my own. Part B is $426 quarterly; Part D is $41 per month; Supplemental to cover copays is $179 a month. Thus roughly I am paying some 362 per month to be covered. Advantage plans have their advantages - it all depends on what you wish to get. For my normal use - I am overpaying for medical coverage as I am pretty healthy. It is those major operations where you are fully covered from the ambulance ride to the hospital until the time you walk out of the hospital. You walk right by the cash windows as all of your bills are covered. I am 69 today - I do not plan to return to the workforce if at all possible. Volunteerism is just fine. This topic raised many thoughts - it was nice to read the various answers. Walter