I'm sorry but your math is off. If you are at 5.5% and can drop to 2.6 or 2.8, you will save thousands in 1 year. I dont know your loan numbers but I refied $100k and my monthly payment went down over $400 If I were causing my PMI to go up $50 a month, I'm saving money, a substancial amount.When I looked into refinancing to try to drop our 5.5% interest rate we decided it wasn't worth it, b/c it wouldn't save us enough money to justify paying more in PMI, we just make extra payments.