Brrrr In Chicago Cash out Refinance and buying points

[Aaron Frances]

I'm at the point where I can buy points to bring down that APR. I was told unfortunately I won't be able to do 80% LTV and I'm back down to 75% LTV. I was told I can buy points up to 3 points I want to say which will bring down the APR form 4.875% at $300 to 4.25% for $9788. What has been the consensus on buying points for anyone who has done a BRRRR?

Thanks Everyone. 

Aaron.