I'm getting approvals for a 15-year fixed mortgage. At current rates, this will just barely get me into my target price range with a payment equal to 1/4 of my take-home pay, which Dave Ramsey says is smart. This will get me a 3.9% or so rate.
The mortgage brokers notice that I was in my last house only 3 years, and are pushing, for example, a 5-1 ARM which starts at 2.875% for the first 5 years, then supposedly can adjust, but the adjustment is somehow re-amortized to the then-current value of the home, and capped, so it's not that bad. It honestly sounds worthwhile to get the ARM, make the same-size payments you would have made on the 15-year fixed for the first 5 years, and you can't really lose vs. the 15-year fixed loan. And if I happen to move in 4 years, I totally make out vs. the fixed-rate loan. But everyone says "OMG never get an ARM". What am I missing?