While we as fans tend to think in terms of athletics first, conference invitations are made by university presidents, and most of them tend to want to associate with their academic peers. For instance, while most think of the Big Ten as the next conference down from the SEC or maybe equal to them, all of the Big 10 schools are members of the the AAU, the Association of Academic Universities. It's made up of elite schools, most of them big in research. There are 64 of them total, and while some have athletics some have dropped them or only have them at lower levels. We're talking the Ivy League, Johns Hopkins, University of Chicago, Penn, Stanford and the like. The Big Ten wouldn't touch Louisville, for instance, with twelve ten foot poles lashed together.
Put it this way. At this point UAB's academic profile is not good enough for AAU admission, and we're no football factory. We meet many of the requirements, but our stats in many academic categories are far below what would be required to get in. It's something we need to aspire to. Getting into the AAU would be a huge feather in the university's hat, raising our reputation a great deal immediately. The other side of this is that our academic profile fits very well with the AAC schools, and that may help put us over the top so far as getting in there. This is also why so many here are disdainful of dropping to the Belt, because their academics are not in the same league... and believe it or not, universities are about academics first and foremost. The good ones, anyway.
Prior AAU thread on the board here.
https://csnbbs.com/thread-615243.html
Note that this analysis dates back to 2013, and we're still not in. If things have moved much in that direction I have not heard about it. Perhaps some of the more academic and research oriented posters have some knowledge and can update this.
I suspect that many of the AAU member schools regard us the way we do Troy. That's neither accurate nor fair, but it can be hard to change people's perceptions.