1.) Sales volume during 2009 actually isn’t that much different than during the peak years.
2.) 92024 was ridiculously under-priced in the 90’s.
propertyshark.com is a free site (you have to register). An analysis could be performed on any zipcode.
One other note, one reason why the sales volume in 92024 may not have changed from the peak as much as some of the other zips is that the 92024 didn’t have as much land to build on as say 92009 … thus not as many new mega developments like La Costa Valley.