The RE mantra is that RE is local and I concur. Every area is different. So, although using a San Diego wide # might be OK for general chit chat, if you really plan to buy, you’d have to look at how each area is playing out in this down cycle. I even notice a difference in rate of decline for different part of the same zip code. So, I don’t think any one area can speak for San Diego as a whole and San Diego as a whole will never speak for every area.
As we’ve mentioned many times before, the bottom end has been crashing much harder than the rest. My feeling is that it’ll hit bottom before the total San Diego # hit bottom. The high end will hit bottom after that. That’s just my 2 peso.