@Glen Gallo
Supply & Demand tells the story. Although we're up from .7 MSI (months supply of inventory) to 1.0 as of the most recent data, we're still in a predominantly sellers market. Things have softened a bit over the last 6 weeks. Slightly longer market times, less offers on property, and slightly more inventory.
To address your comments above, SD's economy is bringing in tens of thousands of tech & life science careers over the next decade. It's no wonder we've had a surge of these industries coming to SD over the past 14 months from the Bay area & the rest of the Pacific northwest, Boston, NY, and even Texas.
Two thirds of people coming to SD have a bachelors degree or higher. We are continuing to become younger, richer, and more educated. Now that our economy is really making leaps and bounds you can easily make an argument it's the most attractive place to live in the US, considering everything else SD has to offer. I believe we are San Francisco 2.0. The demand is through the roof, and as long as the supply stays low (which it is forecasted to remain so relative to our population for the next decade) we should stay in a similar market moving forward.
I don't except to continue to have appreciation gains as we've seen over the last year. It's simply not sustainable. However, we're still nowhere near some of the most expensive city's in the US and I would expect the top 1% to continue to flock here.
Hope this helps.