I would rather use the life annuity option offered by governments (e.g. HKMC, CPF) these days as a base backer of my retirement income.. not going to rely fully on them, but will have them such that if the purse really runs out when you are 90, there is still some residue left to pay for food and water.. i doubt i can use much money when i am ninety.. and stick to countries where you have some medical protection at those age (again HK/SGP).