As someone under a ton of debt, I'd like to know the answer to your question too.

For a fun-time experiement, plot college cost vs. :

minimum wage inflation health care

since the 70s or so.

Right around 1980ish, health care and college costs started heading for the roof relative to inflation.

edit: I haven't worked the math to differentiate between average cost of ivy league schools and average cost of state schools. I think the current difference sits at 4x or so for list price.