A good video is worth (your estimate here) words, but a bad video is just a couple of minutes you’ll never get back. Don’t waste your client’s time; do present interesting media people will want to share.
With the recent explosion and expansion of online video, the biggest question is how to best drive viewer action and monetize this new medium. Online video has a lot of promise. It offers what was once limited to expensive TV advertising: reach and emotional engagement with potential customers. And, it’s relatively cheap and provides immediate, measurable feedback.
Mashable comes through again with this article outlining some video basics.