True, it's in Dallas. Which is still in Texas. I don't know about the geography (except that I know Texas if freaking huge, and Dallas and Austin aren't that close) but it still seems like the crowd would always favor Texas, even if it's just slightly.
I never understood the neutral-site rivalry games. Why would either team, especially the out of state team? give up the home game? It's the same with Florida-Georgia. It would be kinda like Michigan deciding to play someone in Detroit or Chicago every year.