Most of the schools on that list I wouldn't consider to be highly successful programs.
Also since the last expansion, there has been a moratorium placed on anyone else moving up. The BCS schools also voted themselves more autonomy from the NCAA while making it harder for non-BCS schools to break into the newly created BCS playoffs. It is not a good time to be a non-BCS football member of the NCAA. Even if the BCS expands again, it's going to be taking schools like UConn, Cincinatti, and Memphis. And I don't really see anyone expanding outside of the Big 12, which just voted NOT to expand (Big 10 is at 14, the ACC is at 14, the SEC is at 14; outisde of the BCS CUSA is at 13, MAC is at 12, AAC is at 12 -- these are pregnant conferences already).
Let us not forget that the Virginia legislature also made it more difficult for schools to support programs with student fees, so doubling students fees a la ODU to start a football program isn't going to work at Mason.
UGA is also in Athens, Georgia, which is 72 miles away from Atlanta and also has almost 120 years of history.
I'm not really sure why we can't just be happy building a premier basketball program like so many schools in the Big East and A-10 (and yes I know some of them play non-scholarship or limited scholarship football, but that's neither here nor there). We should be looking to schools like Georgetown, Villanova, Marquette, Dayton, Butler, Creighton, Xavier, vcu and Davidson instead of trying to figure out how UCLA and Pitt and Miami can field both football and basketball in pro-sports towns.
edit: I also forgot to mention that starting an FCS level program at this point might be hard, too, considering there's no way the CAA will allow us to join ever, and the SoCon won't let us join as a football affiliate. That leaves you with maybe the Pioneer or Northeast Conferences, neither of which are ideal fits.
Again everyone points to reasons it's difficult to start a program. No one is saying starting a program would be easy. But neither was flying to the moon. It all depends on if people want it or not. If there is a will there is a way.