I was in a used furniture store (Finicky's) in Prescott Valley yesterday and they have a number of buildings for sale. These are roughly twice O scale and appear to be handmade, beautifully detailed, and quite sturdy except for a run-down mill with a water wheel which is deliberately decrepit. Some smaller details are delicate.
Most of the doors are functional and the details such as individual shingles and glazed windows are striking.
The most expensive one is under $30.00.
I have no interest in these myself, but thought someone might be. I suspect that, due to the fragile nature of some of the details, shipping might be an issue.