Don't forget any profit made on your principal residence is tax free. If you think about it that's a chunk of change NOT going into the govts hands when you later sell. I've watched my residence go up by almost a 3rd in 6 years. It a house mind but when I retire I plan to sell and move, getting about half the equity out when I go "small town" and rebuy. Nice chunk to be able to invest for income later. It ofsets the interest being paid in my opinion.