That is why it is stated often that consistent advertising ensures a cumulative effect. The more familiar buyers are with a brand, the more likely they would buy it. That is why print media advertising will never be out of fashion.
Print media can only include a photo (and the inclusion of a photo is usually dependent on space) and occasionally QR codes, aside from text. With online features, you have ability to share other assets you have created, such as slideshows and videos, making your client and their product or service that much more attractive to potential consumers.