For many homeowners, the idea of living debt-free is irresistible. Imagine wiping out your largest monthly bill and freeing up thousands of dollars in cash flow. That’s the choice facing one couple. Both of them are 51, and with a 6.5% interest rate, they have a nearly half-million-dollar mortgage and enough cash to eliminate it today. Should they pay off their $483,000 mortgage and enjoy the relief of a debt-free life, or put that money to work another way? Must Read The case for paying off a mortga ...