Many customers are becoming “ad-blind,” or not paying attention to advertisements. Users are likely to find anything else to occupy their time while a lengthy advertisement plays, especially on a desktop computer.
Because of their brief duration and countdown timer, bumper commercials are remarkably successful at retaining viewers’ attention. In fact, Google discovered that viewers of bumper advertising are much more likely to remember the ad content.
Additionally, since Google charges by the cost per thousand impressions, bumper advertisements are among the most economical ways to reach the billions of YouTube viewers.