For some fraction it's about cost suppression. For the rest it's about some semblance of competitive balance. It will be interesting to see what the arms race does to the bottom half of the FBS.
If there was a fair system, it would mandate the following:
-4 years to play, period. No 5th years.
-Must be a full time student each semester to be eligible.
-Independent NCAA auditors at each school reviewing coursework for players. Standardized punishments for plagiarism, cheating, etc. across all schools.
-Independent NCAA auditors at each school administering the same, standardized random drug tests using the NFL model or equivalent.
-Players are allowed to receive compensation put into a trust fund. They receive this compensation upon graduation. If they do not graduate within 5 years of being enrolled, the compensation is forfeited to the school's general scholarship fund.
-Players can take a monthly disbursement of a low amount (say, $2000) from their trust fund while a full time student.
-Players with a 3.0 GPA or better can transfer without having to sit out a year. Players with below a 3.0 must sit a year. NO WAIVERS, NO GRAD TRANSFERS.
This is how you get student athletes to be *real students* while also letting them get a share of the pie they earned. The cost would be roughly $100k per school to afford the auditors.