Sonora caverns I thought were way cooler than Carlsbad - I would ditto Mason - excellent mexican food in a little place and their winery next door across the street from the courthouse
Fredricksburg and The Hilltop cafe
quick run out to Marathon and stay at the Gage hotel
check out the Xbar ranch in Eldorado, they have some relatively "rustic" lodging as well as some pretty nice cabins on their place -
then you got the exotic destinations of Abilene, Sweetwater and Big Spring.....
but seriously, a trip up to Perini's in Buffalo Gap and stay at their guest house might be a fun excursion