As a DFW resident, can I say no? Having our baseball team in Arlington is a great big pain. It means every game involves 90 minutes' round-trip driving. Having a team in San Marcos would be similar, but if anything, even worse - 35 miles from each city.
I think they should put a new team in Montreal.
Oh yeah it'd probably still suck, but I'd have a team close by whether I was in San Antonio or Austin