I think at times "we" view this too much through a football lens, which is not entirely wrong of course, it drives $$$. And adding more powerhouses to a conference ends up making schedules that much tougher, fewer "Vandys" to play and scorch. An ideal add would be a program like UNC that has resources but modest football, excellent in other sports, a flagship in the state, same with UVA.
The problem with UNC I think is Duke and NCSU and to a lesser extent Wake. UNC and UVA tick the academic box pretty nicely I think.
Georgia Tech is a mess in football, they do OK in some other sports like baseball. They also have a large student body, but many of them are Asian or simply don't care about sports (NERDS!!!). Tech should and could be a peach, as it were, but they aren't. Maybe addition to the B1G would light their fires?