The chart at the link below is extremely interesting. It illustrates how localized real estate markets are. It is interactive and demonstrates how prices vary across this region. I live in Collin County which is at about 1:00 o'clock on the chart. Right at the center of the chart is some of the highest priced real estate in the area. This is a great way to present data. Tell me what you think. Is this kind of tool available in your area?
http://www.dallasnews.com/sharedcontent/dws/graphics/homesales/084q.html