I spent my entire university career skipping out on lectures because I would never get much out of them. The spoken word is too slow when paced to the dumbest student, the linear straightjacket of slides goes against my natural inclination to imagine and experiment on tangents, and most professors insisted on telling rather than showing anyway, which is horribly inefficient.

If I'd had videos, I could have watched them at 2x, paused when I needed to to go do some sketching or googling, and learned more in the same amount of time because I was directing my own learning and not limited to somebody else's linear encoding of ideas into words.