When we could no longer deduct our house payment (too small an amount) we paid off the mortgage.
This allowed us to then funnel those payments into investments.
Having no mortgage and enough money aside allowed us to retire early.
One of my old co-workers did something similar, only when they retired they leased the house out, which allowed them to buy a nicer RV and hit the road.
Years later, when they had seen just about everyplace in North America you can drive to, they terminated the lease, remodeled the house with the funds the renters had paid them and then moved back into their own home. Having owned three RVs their renters helped pay for.