+1 Cornelius.
It is important to keep people in touch and mixing with others outside their local area to maintain strong ties in the organization.
Many of us lack either funding or scheduling flexibility to attend the international meetings.
I am certain that I am not the only person who has found the videos of past Wikimanias valuable!
Different people learn in different ways, and at the end of a long work day, many of us find listening to a video much easier than attempting to make sense of printed text.
The videos break down some of the barriers to diversity. When there aren't enough scholarships available for everyone who wants to attend, the video is a way to keep people in touch with the organization and their friends, regardless of their personal economic situation or geographic location.
People give up on waiting for the videos if they are not posted promptly, and easy to find on the website. You'd get more audience if they were easier to find.
Kristin Wikimedia DC