Are you talking about the ones on a pole or sometimes mounted off the garage roof....
There's one on a pole at the house across the street from me... The old neighbor died and the house was just sold... The new owners are going to tear down the old house and build another house on the property... They may knock it over soon, they just had a tree service in there Thurs and Friday cutting down a bunch of trees....
If you want it, better get it now or it may disappear any day...