As you all probably know, all the Texas schools (except Baylor) use the TMDSAS system for their regular admissions. It only cost me a bit over a hundred bucks to apply to a few Texas schools, and would have been about two hundred to apply to all of them. Only about half of them even have secondaries, but the secondaries were free. If I didn't apply to Texas schools, I would have been sad, as that's where I'm headed.
And just for the info, I was OOS (obviously), had solid stats (I would say), and some ties to Texas. I have friends who got in with minimal to no ties to Texas, though.
So, if you would like to go there, I think it could be worth it. There aren't a ton of OOS spots, but it was difinately worth it for me... And for about ten percent of each Texas class! Not a ton, but still quite a few people.