Right, but we need to distinguish between three separate concepts: A) the prices universities charge B) the costs universities incur C) the reasonable costs

Right, but we need to distinguish between three separate concepts: A) the prices universities charge B) the costs universities incur C) the reasonable costs of providing a quality education, given current market prices of the important inputs My comment was meant to illustrate the large gap between B and C. You are talking about A, which changes in lockstep with B.