I don't think recent conferences have been expanding based on team's football prowess. Making money THROUGH football contracts, yes, because its more popular and worth way more than basketball.
Nebraska being the exception with their 5 national titles and top-10 standing in almost every significant football category.
Utah? historically irrelevant outside of a couple years with Urban Meyer. They are good now but no one thought this an slam dunk expansion. Why did they expand? State School in the west, 30,000+ students, many alumni , and Salt Lake City.
Colorado? They have 1 split National title that no one remembers and have been largely irrelevant since the 90's. But they are the flagship school of Colorado and are in the greater Denver area. 30,000+ students, many alumni, etc
A&M? 1939 National title. Haven't won a Sugar Bowl, Rose Bowl, Orange Bowl, or Fiesta Bowl since 1939 vs Tulane. Largely irrelevant before moving to the SEC. They do however have a large alumni and fanbase. They are also located in the State of Texas which is the second most populated state.
Mizzou? Haven't done much of anything in football. Were ranked #1 for a week in 2007. Not bad but aren't anything special. Bring a decent population of viewers and alumni like the rest of the list.