A fair bit of what I would have said has been covered by @Martin Scherer and @Jay Hinrichs, but I'll add some thoughts:
One of the things I love about this area is the diversity of micro markets. Out on the coast we have breathtakingly beautiful coastline, some of which is multi million dollar estate ville, but other areas are still pretty affordable. We just bought a 2 house property 5 minutes outside of Fort Bragg, 5 minutes to a nice beach, on a beautiful acre, in a nice neighborhood for 200k (needs about 60k of work). Should be in the 1% range. Our 4plex that we bought in Fort Bragg in 2012 is closer to 1.5% range.
Inland in Ukiah you have the 101 corridor and the majority of the jobs. New housing has been very limited due to zoning, ag, costs, limited non-mountainous space... Rental market is very strong. Hard to find 1% deals around Ukiah these days, but some happen.
What the inland lacks in ocean vistas it gains in vineyards and boutique winery areas. Anderson Valley, Hopland, Southern Lake county... Some of these areas are slowly but surely looking more and more like Healdsburg, Sonoma, Calistoga...
Over in Lake County you have some surprisingly cheap areas, especially when you consider the views of the lake and Mt. Konocti. People have been predicting the turning of some of the run down areas for a long long time, but I can't help but think that between the views, the boating/fishing, the wineries, and the retirement age boom, we are going to see increasing demand and repositioning opportunities moving forward.
Looking at the larger picture and speaking to @Account Closeds question, in addition to demand from retirees, I think we will continue to see an increase of folks who work remotely, enjoy the quality of life attributes and cheaper prices, and like that they can swing down to the bay as needed. From the investor side I know there are folks who like that they can access cheaper markets within an easy day trip, and get in a little wine tasting or what not as well.
Okay, I could go on, but will try to avoid turning this into a book. I'm not trying to say there aren't challenges in this area, there certainly are, but I'll leave that for another post.
@Brian Burke, maybe you would care to jump in on this conversation? I know you've got plenty of experience and perspective on this region.