FWIW, if I was planning to sail in the PNW, I'd probably rather have a PNW boat. My reasoning is that things that are very nice to have vary by region.
For instance
- Dodger: for me, a dodger is nice to have but not a big deal. In the PNW I can't imagine not having one (and one in good condition).
Heater: Similarly, down here nobody has, or needs, a diesel heater... but in the PNW I can't imagine sailing in the winter (which I have done up there enough to know) without one.
- Deck/hatch/etc leaks: CA boats may also have a lot more unaddressed leaks than PNW boats because... it doesn't rain that much down here (especially when people are actually ON the boats
- Windlass: An anchor windlass is optional for me; I anchor seldom if ever. In the PNW, cruising is much more accessible, and the more you anchor the more you really want that windlass I am sure. I can;t imagine anchoring every day for a week or two without a windlass.
- Head holding tank: in the PNW, if you are cruising, you'll need that a lot. In the bay area, very little, so often they/the head will not be well maintained (I suspect that is also true in SoCal, but not sure -- basically, anywhere people are day sailing rather than cruising will be more likely to have low head use/maintenance.)
- A similar argument holds for engines: a boat that has been cruised probably has a well set-up and maintained engine (especially in the PNW, where often there is little wind.) Down here, at least in the bay area, those engines are used for 15 minutes at each end of a trip as you go in and out of a marina to the almost-always-plentiful wind. Result: it's less worrisome if you think it might fail (a number of people (those that go out regularly) on my dock sail back in, for sure -- I have asked -- in some cases so they can to keep their skills up in case the engine fails, since it... apparently it does periodically.)
- Rigging gets washed with fresh water in the PNW all the time; down here you see a lot more rust than I tended to see up there.
With a PNW boat, a lot of this may already be sorted -- windlass added, or dodger there and in good shape, or a diesel heater installed, etc. Installation of half this stuff costs more then the items -- having it already done is a huge benefit even if you decide to (e.g.) change to new radar unit on that stern-post.)
Add the above to the extra UV damage, etc. that others mentioned, and then subtract more leakage/possible mildew/whatever else is more likely in the PNW. Then decide whether trucking a boat makes sense. Aside: they have to take the mast down to truck... if you do ship the boat, that is probably the time to re-do the mast wiring, masthead instruments (hmm... going to NMEA 2000? Now you are committing to replacing literally all instruments on the boat...) and lights (include steaming light/deck lights), VHF coax and new antenna, add any spinnaker halyard crane you decided you needed, mast-mounted radar pr reflector, as well as re-do the standing rigging. Despite what I've seen in other forum posts here, in the bay area numbers I've heard for that stuff (not even including the radar) are around $10k+, a decent fraction of which is pulling the mast. Might as well do it when you already pulled the thing...