Just some geeky thinking, if one image is worth a thousand words (doubtedly, 'cause i don't think there are much pictures worth that), then video is worth a thousand images. Considering the moderate framerate (let's say our eyes comprehend 25 frames per second) the video of about 40 seconds is enough to fulfill that saying. Strange enough most commercials are somewhat about 30 seconds in duration. Coincidence? I THINK NOT! They put their propaganda in 30 seconds on purpose because only in first 30 seconds attention span is most valuable (afterwards, you start loosing it tiny bit per second). Come to think of it - is all subsequent video commercials are obselete because they are not the first ones? Less