Eastern Tennessee

Beautifully green.  No traffic.   People generally friendly.  Houses are far less expensive than Boise area.  I have some misgivings still about dark skies.  We have a quarter Moon tight now so I really have no idea how dark the sky is.

Lots of cute little towns with gobs of history and charm like Elizabethton.

Jonesborough is the oldest city in Tennessee.   Washington County courthouse. 

Once you subtract the murders and population of Tennessee's big cities (Memphis, Nashville, Knoxville, Chattanooga, and a couple of others), Tennessee's murder rate is only about 50% higher than Idaho. Rape, burglary, and aggravated assault rates are similarly higher.  Gun laws are generally similar to Idaho, so moving here will just mean carrying more consistently.

Gasoline is definitely cheaper: $2.44/gallon is typical.  Meals out are cheaper and obviously so.  Electricity is no cheaper.