While most have been focusing on the increased revenue draw aspect of realignment decisions, I have been blaring my iconoclast horn about fandom. For some programs, going for the most remunerative option is what it is about...but...
If cash is king, you circle the number in the Big Ten athletic budget spreadsheets and know that you will watch games on TV against far flung non regional opponents.
If what you think is more important is sustainable fan passion that feeds the other revenue streams (tickets, licensing, NIL, etc) than you may make another choice.
For UNC football, there is probably not much difference in pull between the B1G and SEC other than academic snob appeal.
For other teams, say Clemson or FSU, the B1G may make you richer on paper, but the SEC makes you matter on Saturdays. You live amongst 'em. They have been your natural rivals.
Money versus passion...I will always go with passion. I have been thankful that I married that Texan girl a lifetime ago, as hardscrabble as her family was. I told our boy in our father-son talks when he was in his early 20's and questioning me, "listen to your heart".