I was just noodling around and found this interesting...
The number of "haves" has increased. In 1998 there were 62 "have" programs, in the sense that they were in one of the 6 conferences that had an auto-bid to the BCS.
When this new CFP format there will be 68 "have" programs, meaning they are in one of the five Power 5 conferences that will almost certainly get an auto-bid every season.
If you're curious, the 6 programs that graduated to "have" status are: UCF, BYU, Cincinnati, Houston, TCU and Utah.
Also worth noting that the auto-bid for the 6th best conference likely means another 40 schools are "quasi-sorta-kinda-haves". I figure that 6th bid is going to come from either the American (14 teams, and is weaker going forward due to their losses), the Sun Belt (14 teams), or the Mountain West (12 teams).
So people will complain about the SEC getting 3 teams in the 12 every year. But all things considered this is the most egalitarian that college football has been in forever.