SEC is, by far, the most talented conference. As I noted, they could be HQ'd in Barbados for all that matters.
Big East was in Providence and how did that conference end up taking on the new world order? Not well.
No MSG for bball, no aggressive national expansion, continuing to allow power to be concentrated in NC with a number of those teams trying to break the ACC.
The HQ is unimportant if it's in a vacuum and everything else is totally fine. B1G is in Chicago. Big XII is in Irving within the DFW area that will be third largest metro area within the decade.
So congrats to the SEC, they do get to be wherever they want. The ACC does not.