> Studying something like Biology or Engineering or Comp Sci where you're actually consuming resources as you learn (be it dissecting frogs or cloud computing or 3d printing equipment), so you'd expect that there's a cost that business, law and arts courses don't really have.

The only consumable resources that I expended in my Comp Sci bachelor's degree was some person-hours of ass-in-seat, fiddling with hardware design software.

Everything else was done with off-the-shelf, typically free software, mostly on my personal laptop. If I didn't have one, I'd have done my homework in any of the general-purpose computer labs, also used by mathematicians, art majors, and medical students.

You don't need to piss away $5,000/term in cloud computing costs to get a good 4-year CS education.

All of my Chem and Bio lab classes had extra fees on them to pay for lab consumables. Obviously this does not cover the big expensive lab equipment. I'd imagine pure science classes cost much more to run then most liberal arts courses. So in theory, the science courses would cost more than any liberal arts courses.

I'm saying we'd probably subsidize the cost of some courses over others.