Yeah, that would be somewhat important to me as well. I want to travel in retirement, and depending on where I retire (and where the kids live), I might have to travel to visit them.
It's the one thing that would make moving to somewhere like Paso Robles really hard. It's pretty much a 3-4 hour drive to a semi-major airport--and if I need to get to LAX or SFO to go international, it's even harder than if I just wanted to end up someplace like San Jose or Burbank to fly domestic.
Speaking of Paso, my wife was born in San Luis Obispo, and mother-in-law moved back there for awhile with husband #4. That sounds bad, but #3 died in a drag racing incident with a little toy truck he put a crate 502 in on his 4th pass.
Anyway, #4 was a retired oral surgeon, and had a freaking beautiful home, that he sold for 1.2 mil. The buyer, a tech millionaire, immediately knocked it over to build an even more expensive pad. Had a running stream just outside the backyard gate, and that town is freaking beautiful. It's just that nobody that works there can afford to live there.
He, #4, took me on a trip around the county to wineries one day. Being from BFE, I was absolutely amazed.
And, there are airports in both Paso and SLO that get you to LA real quick.
Just down the road are beautiful places such as Pismo Beach, and to the north a bit is the Hearst Castle and the Hwy 1 views.
Anyway, unless those lotto numbers (that I don't play) hit, it's going to be far out of $ reach for most anybody.