@timcliff - I assume you are talking about a FB ad campaign. My associate and I run these for clients and for our own sites and from our experience short videos provide a conversion and click rate leaps and bounds better than photos.
Just something to consider. I'm sure plenty of folks on steem would create video as well. Though it's best to have an actual face/person speaking. Maybe mitchell from PR or someone like that.
That's a great idea! I'm probably going to start out with an image based campaign, but I will definitely keep it in mind for a future project.