Yeah, but if the market crashes while you’re still overpaying your mortgage, now you’re out of a job AND potential savings that you can’t get back. With even inflation outpacing mortgage rates now, I’m not certain in what situation—even from a risk perspective—it makes more sense to pay down a mortgage more quickly than necessary. (With current rates at ~3%. Obviously in the late 80s it made sense to pay the house off as quickly as possible.)