They steal anything and everything in Memphis too. That's why I only have ratty bikes. Most are worth 200- 500 in parts, to the right person. Living here, I would never own any bike worth More than that.
I'll take 4 feet of snow and 0 degree's for a few months. It tends to keep the homeless population at a minimum. We do however have groups that check garages and sheds regularly so they must remain locked. In certain areas an unattended bike is a target but mostly higher end bikes with components. My vintage bikes do not have much appeal to that crowd. But I never take chances I lock them where ever I go.