I think it was a smart, surgical move. They took the cream and got to Pacific Time. Pacific Time is a big market, but not the best sports-watching area, especially southern California. But it makes them truly national and they added like-minded institutions. The Big Ten might be rust belt, but smart kids from all over the country still want to go to those schools.
I think the Big 12 moves were less impressive. They did get Arizona (the state), but there is total redundancy in taking the two schools. And having BYU and Utah is just terrible. Plus, if you look at their other schools, all are second (or third or fourth) fiddle in their state and some are from low population states. We'd have been better off in the Big 12 than where we are, but the Big 12 is only hot because Yormark made a fantastic media deal. Are you really impressed with that line-up of teams on the football side? And as great as the basketball is considered, you only have Kansas and Arizona that people care about.
In my opinion (with isn't worth anything), the Big 12 should corner the market of remaining, decent schools. That would, of course, include UConn. Plan on going to like 30 schools and equal the Big Ten and SEC by sheer numbers.