I updated this placemark.

I joined MLS data tables to a Maricopa County parcel shapefile by APN number in ArcEditor. Then I selected out sales for a period of about 1 year and categorized them by 9 different lot size ranges and symbolized them by 5 different resale price ranges. I imported it into Google Earth and edited it with Ultra-Edit so that the placemark tags include date values that GE can display as a 4th dimension visually. I also ran a calculation on the prices to give it height attributes that didn't force the parcel columns into outer space.