This stubborn hand-wavy argument that prices stay high due to greed smacks of economic illiteracy and White House propaganda.
If I raise the price of a gizmo I'm selling by 20% because my costs went up, why would I reduce the price when my costs go down but demand is still high? I like my increased profits, and so does my competition. The myth of perfect competition is a exactly that: established companies do not engage in races to the bottom, "cartel" behavior is emergent.
How does your perfect competition theory explain why tuition prices have been going up over 5+ decades, vastly exceeding inflation?
Because Apple keeps making the phone better.
> How does your perfect competition theory explain why tuition prices have been going up over 5+ decades, vastly exceeding inflation?
I didn't espouse a "perfect competition" theory. That's your strawman. Anyhow, tuition prices have gone up because the government provides rivers of cash to prospective students. The pool of students thus has gone up drastically, and because of limited supply of colleges, and vast demand by students with fistfuls of cash (and little sense), the tuition went up. A lot.