And how did that magical cost inflation happen at exactly the same time that healthcare costs skyrocketed and the dollar plunged in value? (while at exactly the same time, all commodities skyrocketed and all foreign GDPs skyrocketed).
That's the result of debased standards of living through destroying a nation's currency in the process of funding economic stupidity (massive budget deficits), war, etc.
It's not just that college got so expensive. It's that the standard of living dropped, amplifying an already elevated cost inflation. That's represented in the permanent price increases you see in all commodities for one example (which are priced in dollars). Gold isn't going back to $300; oil isn't going back to $13. Wages didn't keep up with the rate at which the clowns in DC destroyed the American standard of living. Some things are held in check by market forces, you can only inflate the cost of video games so much in a market system, or you rapidly lose buyers. College was able to skirt that market restraint courtesy of the government's student loan backing, which pretended the US standard of living had just kept right on climbing.