I thought I'd resurrect this thread with a bit of recent experience.
We moved to Talent, OR 2.5 years ago, and discovered ourselves far from the nearest Tesla service center. In that time, we've had mobile service out to visit twice, once out of Portland and once out of Bend. One time we had work done in Chico, CA--not close, but we scheduled it on our way home from a visit to the Bay Area, so it wasn't too bad. And we just got our car back from its most painful (dead MCU) service yet; it had to be towed to Bend. At least Bend opened as a service center instead of just a mobile service home base last December or so.
Anyway, while I was in Bend, I made the point that Bend is pretty inconvenient for those of us in the Rogue Valley, and wouldn't it be nice if there were a service center in Ashland or Medford (or Talent--we could use the business). The service advisor said Medford is on the way, but he didn't have specifics. No idea whether it'll also be a show room (like Bend) or just service (like Chico).
Anyway, that's what I know!