Where I live there always seems to be a house up for sale. There has been several times where people have simply moved on and left a house which seems odd to me. We had a good streak going where I think every house on the block was occupied for like a year. But now we have another house up for sale just two doors down from me. The owners apparently left it. I have looked up the home and it is modestly priced. From the outside it looks in good shape. A long drive-way, nice windows, and a good roof. The people there were a little too active for my tastes. They and their friends were always zipping down the street with their modified cars. They had a yippy dog which I do not miss. I prefer a quiet neighborhood where people are conscientious.
I just find it bizarre that the houses here have such turn-over. My guess would have been that people would stay for longer periods and not just up and leave.