Glenwood, New Mexico - About 4,000 ft elevation which means it rarely snows and it's not too hot in the summer. It's about an hour drive to Silver City, NM which has enough services. Great roads to ride in this area...hwy 180 north and then jump over to Arizona, or just keep going north on hwy 32 and 36. Very little traffic, but the elk in the area would mean no night riding. In the winter you could ride south into Arizona.
2nd choice would be tougher, but Northern California has it's appeal. Either Sierra foothills or something up the coast. Around the redwoods would be nice, although I'm not sure I'd like all that rain they get. But access to all those great roads up there is tempting.
Ideally though, it'd be great if I could have 2 residences. One where it's warmer in the winter, and the other that's cooler in the summer. As much as I rail on the snowbirds here in Tucson for clogging up the streets, they do have the right outlook when it comes to living to suit the climate. Hey, maybe that motorhome isn't such a bad idea. Just drive around with a bike and a car trailered behind it, and live anywhere you want for as long as you want.