Grand Junction near the Utah border off of I-70. Short distance to red rock deserts and apsen, vail and telluride. About 4 to 5 hours from Denver. Has a local university, malls, and nice western feel. It also has a some of the most beautiful geological formations on the western slope. I had a friend who lived their and house backed up to the Colorado National Monument. On a 3 day weekend you can ski on lake mead or ski on the slopes of Aspen.
Another town I would love to move to is St. George, Utah. I drove through this city on a trip from Denver to Las Vegas a few years ago and fell in love with it. It is just north of the Arizona border on I-15. I hear it is thriving and growing town.
Grand Junction appeals to native, or nearly native, front range Coloradoans. Fort Collins to Colorado Springs is just one long stretch of suburbia with the ensuing clutter and traffic problems. Grand Junction on the western slope is still manageable size wise, at the confluence of the Gunnison and Colorado Rivers water isn't a issue. Weather is moderate, more so than the front range (east side) of mountains. Grand Junction is the largest city between SLC and Denver and is more or less about 4 to 5 hours driving time to both cities. Great vineyards in the area producing award winning wine with Two Rivers winery my favorite.