In my work as an educational technologist in Higher Education (and with academic/teaching experience in HE) I am more frequently receiving queries and requests from teaching staff who want to make a video of their lecture so it can be available to their students on their module site in the institutional VLE.
Via Elizabeth E Charles
Great point about video not being always necessary! Just watching someone talk is BORING! Plus if it is just audio - downloading it becomes portable and now you are not tied to a screen. I can listen in my car, on my walk, washing dishes... Yes, maybe I need to listen and take notes, but sometimes a general overview of the content is nice too.