The SEC only has "conference pride" because the region has a strong identity itself. The ACC is not really a region even before the realignment, and obviously now is not (as much as I'd love the Atlantic coast when driving down Notre Dame Ave). That said, there is a similarity in the sorts of schools in the conference. For example, ND and UVA are similar in many ways, especially being very good at olympic sports, not too large, academic distinguished, etc.
Still, the league has proved itself the last couple tournaments and that's good for recruiting, competition for the teams, and so on.