Just sent my last payment in, bought in 2009 on a 30-yr, re-fi'd in 2013 to a 15-yr, been overpaying since. Spreadsheets and math be dammed, the peace of mind is priceless. We are now able to test our RE plan, since my income was really only needed to foot the mortgage bill, SO's pension by all calculations will be enough for the 2 of us, and our investments are cushion for later. We are starting our "trial" RE now before I officially hang my hat. With that large of a monthly bill gone, we have much more freedom with what we bring in, and the pension stretches much farther.