Exactly, I still remember looking at my mother, dumbfounded. I showed the spreadsheet schedule to my father, he was an accountant, and explained how soon he could pay off his home and how much money he could save. My mother commented, why do you want to make payments bigger than necessary, you will always have house payments or rent. The notion of constantly being in debt is imprinted in way too many peoples brains.
I believe that most people that can't put any extra money in with their payments have bitten off more than they can chew to begin with. And I don't feel sorry for those people. I have been there.
The biggest advantage to paying your home off is greatly reducing the risk of loosing it. Yes you can make other investments but if you loose income and cant afford those investments you may only loose your investment. If you can't make house payments you loose your home and may not be able to afford rent either. Than where do you go?