Good idea, but I think some sort of achievement test at the high school level would be even more effective at revealing the quality of preparation students have received for college.

Fortunately we already have tests like this and not surprisingly, they show that students are terribly underprepared for an undergraduate education in nearly every subject.

Clearly an undergraduate education received today is not commensurate with the costs to the student, especially when the student hasn't be rigorously prepared for a collegiate education in high school. But the problem is so much more than the price of tuition.