Benzinga and Yahoo Finance LLC may earn commission or revenue on some items through the links below. For many homeowners, a 3% mortgage feels like a winning lottery ticket — especially in a world where today's rates are much higher. So when a caller to "The Ramsey Show" recently asked whether he should use a sudden $1 million windfall to wipe out his remaining mortgage balance, it raised a question many people in a similar position might consider: Should you pay off a low-interest mortgage when you have th ...