The things I miss about A&M are the things you will be immediately reject due to your cult training.

To me - Tech and A&M are culturally similar. Conservative, smaller college towns, ag roots, similar sorts of people at both schools, etc. UT is "city folk", snooty, crazy liberal hippies with a sense of self-entitlement. Tech and A&M have had to fight and scrap against UT every step of the way. Of course, as A&M increased its power within the state, A&M and UT aligned against Tech (and still do) but that's a different subject.
But what I miss about the SWC is that almost every single person I know is aligned with a school from the SWC. My friends are Aggies and Bears and Horned Frogs (and Longhorns) and Razorbacks. I'm not smart enough to have any friends from Rice, or rich enough to have friends from SMU, sadly. In the SWC, we watched games together. We drank beer on Saturday nights and gave each other crap on Sunday mornings. We were a dysfunctional family, but we were family. And of that family, my Aggie friends are my favorites.
So all the politics and money stuff aside, I miss the cultural and social part of the SWC.
In the Big 12, the only people I know that I can enjoy football with are a few TCU and Baylor grads, and Tech doesn't even play those two teams this year. And I just don't care what else is happening with any of the other schools. Don't care. Don't want to care. Meaningless.
I blame Texas for A&M leaving. The way that Texas insisted on having its own little way in every little thing in the Big 12, starting with the Longhorn Network and revenue sharing, was just poison. The people in charge at Texas failed to recognize how helping the entire conference succeed would ultimately help Texas succeed. Look at the environment today... A&M, Tech, Texas, and even SMU are a part of the national discussion, and it could have been that way in the SWC. The Big 12 could have been a perennial powerhouse, on par with the SEC and surpassing the Big 10 and PAC 10. For a time, it was.
If I had been the boss at A&M at the time, I absolutely would have bolted for the SEC. A&M made the right choice. It was just a sad one. At least for me.
I get it that you Aggies are programmed to say that you think Tech is a waste of a school and that we are irrelevant sand fleas and whatever. Maybe you actually believe that. I don't care. But I think the cultural fabric of the state was torn badly when the SWC broke apart, and torn again when A&M left, and once more when Texas left, but I place the blame of that directly on Texas.
I can't decide if I hope that Texas makes the playoffs and faces Tech, or if I hope they crater and finish 8-4 after a pre-season #1 with gawd-almighty-himself at quarterback. Either way, I will go on cheering my little team do something amazing and hope it ends even better.
Thanks for attending my TED talk.