The dudes at Rahr put it better:
As many of you know Texas breweries are prohibited by law, from selling beer directly to the public at their breweries - no 6 packs to take home on Saturday or kegs to purchase directly from the brewery for that special party at home.
While this is no great imposition to the public, it has had a significant impact on the number of, and financial health of, Texas brewers. There are only 8 commercial package breweries in Texas (this does not include brew pubs). In other states - CO, WA, OR, CA. NY etc - there are many times the number of craft brewers than in Texas. In California for example there are over 150 breweries. Many of these beers are well known here in Texas.
Read about it here.
Find your representative here. Thanks Trent.
So, if you like good beer, pleas contact your state representatives.