That my friend is the best money you can spend...paying off the mortgage. It frees the mind , spirit, and pocketbook for more interesting and valuable pursuits.
And if it can't be paid off quickly, at least pay it down based on a 10-15 yr
This way equity builds much more quickly .
And as we all know, it only takes a few more bucks a month to pay it down in less than half the time.
Usually , that's money otherwise wasted on frivolities, not missed at all.