The volume of homes sold in McKinney from third quarter 2009 to third quarter 2010 dropped from $163 million to almost $119 million. The number of sales also dropped from 763 to 518, while the median home sales price increased from $175,000 to $192,172. The number of days on market was down in 2010 in all price ranges except those under $100,000 and over $750,000. Homes over $750,000 were on the market an average of 500...