So? I’m sure they went into it with open eyes and an awareness of the extra they would pay, just like I did. I paid mine off a little earlier, but I’m glad we did it like we did it. I’ve had some good vacations that I wouldn’t have had otherwise.
I saved for around 5 years to pay cash for resale, so I got a similar feeling. (that's due to my stubbornness and cheapskatedness, not a principled decision )