When I left USAA last year to go with State Farm, my savings were over $1800 per year on 2 homes and 3 cars. Plus, six months later I got my SSA check for a little over $8K. So, I am getting "paid" $150/month in monthly insurance savings plus the SSA money is now in a tax exempt bond fund paying me $270 per year in interest. My last distribution with USAA was for $220 and they added $816 to the SSA. I have never been a financial wizard, but this seems to me to be a good deal.
Also, just had my second auto renewal with State Farm (policies are for 6 months) and rates went down again. Not much, but $7 a month is still a saving.
And finally, the State Farm agent's office is about 3 miles down the road. I know him and all of the people in the office.