FREE without any hooks or obligations! Despite the fact that the video is not promoting your website specifically, you’ll still benefit with the increased duration visitors stay on your website. This most often also leads for the visitor to look at another page in the process. Consequently, reducing the bounce rate of your website, and in that sense its a win win situation.
Bounce rate in a nutshell, is a single-page sessions divided by all sessions, or the percentage of all sessions on your site in which users viewed only a single page, and triggered only a single request to the Analytics server.
However, ultimately it is always better to provide a video custom tailored to your specific needs, to explain your mission, or to provide better product descriptions.