I do. My time is valuable. And text is also much easier to archive for future reference.

It's also much easier to skip through parts in a written document because you can see the context before and after easily on a written text. Whereas with video you have this kind of catch up every time you skip.

It’s not the only difference. If I think along with a video/audio, I lose tracks quickly and have to rewind, but there is no obvious cue to where. Text has a fundamental property of being in sync with whatever level of attention I’m paying to its parts. Talk doesn’t have it.