commercials without sound

What I notice with advertisements for sodas or other drinks is that they are quick paced if they are for popular items. But without the sound to help out, they seem to lose a little of their attention grabbing ability. As for the commercials for beds like sleepy's or temprapedic, they seem to use few slow images or just one long one to inform customers. They also tend to use slow images of peaceful places instead of the bed the entire time to illustrate how relaxing the bed can be. Also you can tell what age group the commercials are aimed at by their speed. If their fast, then they want the younger generation to get the product. If it's slow, the goal is to get everyone interested in the product and not just certain people. Over all it would seem that the goal of the commercials determines how they are made.