It appears to be a no brainer to me actually. The costs are about 1% for residences and vacation homes, and 3% for income property. The rate drop would be about 1%, so you break even pre tax in about 3.5 years for income property, and a bit over a year for the residences.
I work about half time as a kind of avocation at this point. I had a rather high savings rate. If consumers were in general like me (at least until recently when I started to substantially accelerate my spending), the US would be in a permanent depression.