I don't care how much money the boosters have, it's going to be difficult to get millions from them every year, particularly if they only see their school treading water. 50 schools can't buy a title, there is only 1 available each year. You might get donors to give a big pile for a year or two to chase the dream, but when the bubble bursts it will burst hard. Let's not forget that all wealthy donors have one thing in common: HEIRS. Most of the time a spouse, and most of them will have kids, the rest have nieces, nephews, etc. And all of them will be screaming bloody murder about the donor giving away their future fundage. Particularly if there is no ROI, no improvement in the football.
But nobody is going to get out of the business. What will happen is what happens in the NFL: A few players will get bank, and the rest will get a little stipend, with the promise that if they become stars the money will increase. What this will do is stop a few schools from stockpiling all the talent (I realize TAMU did that, but more schools are getting their acts together and their NIL up to speed, so it will be tough to do that again). But the days of Bammer and Ugaly and tOSU cornering the market on the best players is over (anyone who thinks players only started going where there was money started with NIL is kidding themselves). There will be more parity in recruiting. The difference between #1 and #10 will be less in future years than the difference was between #1 and #5 before NIL. There will be no reason for 5 stars to go sit behind 5 stars when they will get the same basic money as freshmen plus the promise of more if they become stars. I mean, where are you more likely to become a star early in your career, the place where you sit behind a 5 star, or the place where you are starting possibly from your very first game?
The reality is NIL ended amateur athletics at the collegiate level, and possibly the high school level as well, eventually. Even if people don't realize it yet, college football is now a for-profit model. A non-profit model will not work. The only way to make it work is to separate the teams from the school, create a professional minor league, and institute a draft. All players would get a three year contract with an option for a 4th year. That will end all this NIL nonsense. With no free agency, there would be no more bidding wars. Of course, the players would now be employees and therefore have the right to form a union, same as the NFL players. So they could set up a collective bargaining agreement that is fair to them, plus get benefits as well. That is how to make the college game work. Of course, it means that power would flow from team to team and we would no longer have the same teams on top each year, but I'm ok with that.