You're selling yourself short. You guys would probably wreck the SEC if you joined. Screw this B1G crap. Never mind that Nebby won at the same clip in their first 3 years in the B1G as they did in the final 3 years in the Big 12. That's just facts. You're right. Silly to think that ISU wouldn't come in and be "much more competitive" in the B1G than they are in the Big 12. Nebby couldn't do it, but they're Nebby. They're not ISU.
I think that's the point, Big 12 North = Big 10 = not very good