Lot of interesting posts here. My wife grew up in Sunnyvale, and I in Palo Alto (before it was what it is today... lots of blue collar in my neighborhood, and we rode dirt bikes at Loma Verde and Frontage, and out in the baylands). After college, lived up and down the peninsula, with the final 20 years in Cupertino. We thought we'd live there forever, but it got to the point where we just hated it. Way too many people, most of whom can't drive (not stereotyping, but...), no sense of community. The final straw was when our daughter got hassled in middle school for being the "white kid". I retired in 2016, and both my parents had passed, so there was no reason to stick around.
We already knew about WA and OR, having been through both a number of times to see the in-laws in WA. Too wet, or too desert-y. ID and MT are nice, but too many bible-thumping Republicans, and we're not much for shoveling snow. Yeah, CA is expensive, but you get what you pay for. Started looking as far south as SLO, and worked our way up to Terra Linda. Marin was tempting - I lived in Corte Madera for six years when I was a kid - but the lots are comparatively small for the $$. Carmel Valley was nice, but too hot in summer. Liked Aptos and Soquel, but the Hwy 1 traffic is just like bay area.
Settled on Scotts Valley. No Hwy 1, 20 minutes to Los Gatos, half-hour to South San Jose. Lots of great roads to ride. People are friendly, speak English, and we got a gorgeous house on a one-acre flag lot in a gated community for a million less than we sold the Cupertino house for. It's consistently 10 - 15 degrees cooler than the south bay. We absolutely love it, and our daughter thrived at Scotts Valley High. Zero regrets, and unless something changes drastically, unlikely we'll ever leave.