I grew up in San Antonio, TX and now live in the bay area. There is a marked difference in the Mexican cuisine available between the two. The bay area focuses way too much on cream sauces, mangos, avacados, and other California-isms. The offerings in Texas seem to be much more inline with Mexican cuisine that I've had throughout Mexico and the rest of Central America. New Mexico also has a distinct variety that tends to be a mix of Mexican and Native American offerings.