It's about a three hour drive east from El Paso, couple hours north of Big Bend National Park, in between Alpine and Valentine if you know where they are. Alpine and Valentine are kind of small towns as well though. For a small town, Marfa is really blossoming. I expect more people will know where it is in coming years. There's a lot of art and culture kind of things developing here.
just searched for humble, tx... maaaaan...you're like, way on the other side of the state. Texas is a big ****in place man. It blows my mind when I'm flying from Dallas/FtWorth to El Paso and it takes two hours just to cross the state.
You should really go out of your way to see bands if you're interested in them. Most of my life I didn't really get into bands enough to go see them live, but in the past couple years I have and it's really been one of the best decisions I've made.