Real estate prices never drop.. right? Check out this chart of the Japanese real estate market over the last few decades:
http://www.reinet.or.jp/e/jreidata/a_shi/im/0312_1.gif
We obviously have a very economic situation in the US than Japan did during their bubble in the 80s. If the market has peaked, prices definately won't drop like a dot com stock in 2000.