Never had any wine from Texas, but I had a couple bottles of pricey Viognier from Virginy a while back. They were good, well worth the $0 that I paid for them.
Next time you visit soCal you could stay here:
It's a very nice hotel, it's about 5 minutes from the Temecula wine country, great temperatures even in the summer, about 1 1/2 hour drive from Disneyland, Sea World, and San Diego.
The casino table minimums are a little high and they don't comp drinks, so... BYOB.
Some of the Temecula wines were very good, and the wine tasting is always a blast.