I'd say this is not as big a deal as textbooks, because you need textbooks long after you're done with the introductory courses that use these systems. For exam

I'd say this is not as big a deal as textbooks, because you need textbooks long after you're done with the introductory courses that use these systems. For example, I have a few dozen textbooks on my shelf costing well over a thousand dollars in total, but after four years of undergrad I can count maybe three times I needed to pay to enroll in an online homework system, for a total of what, maybe $300?