Really?
Let's assume your argument has any base in reality (it doesn't). The money alluded in this rumor would make any coach a fool to ignore.
To say Texas is "on another level" than even second-tier SEC teams is ridiculous, if you live in any of the 49 states not named Texas.
Yes, football is huge in Texas. Guess what, it's huge in Tennessee. It's huge in Alabama, Georgia, and Florida as well (maybe not so much in Mississippi).
To goobslobber Texas at this point in time is a bit outdated. They aren't on "another level" - unless that level is quite a bit below the SEC.
If you are speaking of revenue ONLY, you might have a point... I've never really studied where brisket-eaters spend their money.