Ya I guess it kinda goes both ways. There are a lot of people who would rather see the video (like myself) than read through the doc. A lot of people are visual learners and often find it easier to see the presenter run through the software on the screen then scan through the doc to try to find what they want.
I do see what you mean though. Hope the videos worked out for you
How about offering 1 month free usage to whoever can write a nice guide in words and pictures for you.