Aggieman
There also is supposed to be a really good one in San Antonio and another in Austin, although I have never been to either and cannot even give you a name of those shops. Maybe Hill Country Hobby in San Antonio? The one in Austin is located very near the Texas University campus from what I understand.
Hill Country Hobbies is on the northwest side of San Antonio. It is well worth the trip from Houston.
Kings Hobbies is the THE hobby shop in Austin. It is located on North Lamar, north of 183 in Austin, not really near the UT campus. Again well worth the trip. Sheepishly, I will admit I have driven down from the DFW area.
February 18, 2017, IPMS San Antonio will be hosting their annual ModelFiesta show. It too is on the northwest side of San Antonio. Google ModelFiesta for details