I am not saying it is not slow in Del Cerro but I am not sure I would say it is shutting down. Your selections of closings from October to February is a good choice of the seasonal worst time in real estate in any region.
While there were only 3 closings over 700k since 10/1/07 there are currently 7 pendings for list prices over 700k. One is at 709k so it may close at less then 700k.
Again, I am not trying to skew your data. I am just trying to show ALL of the data. There is not any argument at all that most buyers are indeed more selective and patient.