I am considering moving money I have in a Variable annuity into an Income Annuity that would give me a monthly income stream of $4837 until my death. Approximately 1/2 of the money would be taxable. I am age 66 and plan to wait until age 70 to take my social security ($4,000/mo). From my understanding, this would be a more tax advantaged way of handling my monthly expenses. Does anyone have any input? Downsides, other than inflexibility?