This weekend Kim Weeden tweeted that the most common myth about higher ed that she runs into is that teaching online is cheaper. It isn’t. Most of a college’s budget is labor. When a physical campus moves to online teaching, it doesn’t save much labor at all. Grading an online student’s paper takes the same amount of time as grading an on-site student’s paper. Yes, technology allows a single presentation to be shared with many more people at once, but viewing a presentation isn’t education. Actual learning occurs in the engagement with the material, and that still requires human interaction.
https://www.insidehighered.com/blogs/confessions-community-college-dean/no-running-online-classes-isnt-cheaper