Your brother doesn't happen to work for Gabriel's Superstore, or the chain that owns it, does he Mike?
Seriously, though, the Fredricksburg area has a large number (~8-9) decent wineries, a couple of which are really nice. They are all pretty small and family-operated mostly. The Hill country (roughly north and west of San Antonioand south of Waco - roughly 300-mile diameter oval) wineries/vineyards haev had a hard time because the long hot summer is tough for most grape varieties - Spanish varietals (Tempranillo especially) and southern Italian varietals have done comparatively well lately; classic French varietals (cabernet, pinot noir) just struggle, at best. Viognier is supposed to be THE Texas white grape varietal in the near future, and many vineyards are adding it in significant quantities. Varietals that have been successfully transplanted to South Africa and Australia have some mixed success in Texas, Malbec may become a widely planted varietal too.
West Texas has a very different climate from the Hill country, much drier and greater variation between night and noon temperatures, which is better for most grape varietals; Pierce's disease has been a constant problem for the more humid southern and coastal areas of the state.
Point is, when I traveled through the Hill country wineries a couple years ago, most of the good wines they were making came from grapes grown outside of Texas. They were quite proud of the varietals that had produced well in the local terroir, which were relatively few. Once I learned what those were, I looked to taste those rather than stuff grown elsewhere.