I moved from MD to St Louis for my job, and still make it back to MD about once or twice a month. If you're in the same location as my parents are - equidistant from all three Baltimore/Washington airports - commuting will not be a problem. I've never had trouble making it between STL and B-more/DC, and I'm guessing that there're more flights from the area to Dallas than there are to St Louis. The two questions you have to ask yourself are: why would you give up days off to commute, and why would you stay in Maryland when you don't have to?