Dawg06,
You're part right. We do not provide access to the Houston market, because the Big 12 already has access to the Houston market. In spades. However, it's not a binary thing. The Horns have part of the market. The Aggies have part of the market. We have part of the market. But while we don't provide access to the market, we help solidify it. And given that they're about to lose a lot of said market to the SEC, that's not valueless. LaTech provides much more of the Shreveport market, but it's also a notably smaller market. BYU provides the Provo and part of the SLC market, but they provide bits of markets across the country due to their religious affiliation.
There are various Pros and Cons for UH inclusion into the Big 12, but the market is in the "Pro" column. A part of the Houston market is bigger than most of most markets. This is probably not sufficient to get us into the conference, but it's far from valueless. It's one of the reasons that conferences do double-up on the markets they already have access to, sometimes.