Mortgage rates have been the monster under the bed for a while. Every time they tick up, people flinch and say, “Maybe I’ll wait.” But here’s the twist. Waiting for that perfect 5-point-something rate could end up haunting your wallet later.The Magic NumberAccording to the National Association of Realtors (NAR):“. . . a 30-year fixed rate mortgage of 6% would make the median-priced home...