If you rent your home in California, it seems likely, (although not guaranteed) that both your rents and the value of your property will increase more rapidly in comparison with a lower-income / lower cost-of-living state. 

Greg, quads are great and some people love them, but a better comparison would be 4 single-family homes vs 1 fourplex.

If you want to make a comparison, you can check Airdna.

I've posted it before, but here's the comparison chart cover 15 different STR PMS solutions I built out to decide on the PMS Formerly Known as YourPorter (now Guesty for Hosts).

I was just looking for advice on sequence of actions.

Have you used the Enemy Method to view comparison?

You may be shocked to find just how NOT all that "up north" we are in comparison to other major cities/markets that are even further up north.

The appraisal came in at 640k, the comps they used were out of the area, in much better areas, much better condition and really no comparison at all.

The skiing pales in comparison to Colorado or the Sierra Nevada of course, but I still thought it was pretty great as a kid growing up in the midwest 😃

And I personally believe both have their pros and cons and neither is the 100% superior to the other (and I like having both in my portfolio).Having said that, there are some issues/problems with your comparison.