https://philonedtech.com/fall-2020-updates-what-do-college-students-actually-spend-on-course-materials/

“For those who advocate for OER and reduced costs for course materials (and I consider myself in this group), this information presents a double-edged sword. It should be far more difficult to use the previous tactic of college textbook pricing is skyrocketing to justify a new program as even a cursory review of the College Board budgets will refute the $1,200+ numbers. Likewise, this information should cause people to ask for more transparency in savings estimates for OER or inclusive access programs.”

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more on students in this IMS blog
https://blog.stcloudstate.edu/ims?s=students