If you're trying to decide between a billboard and a video wall, you may want to spend some time thinking about the potential differences in return on investment (ROI) between these two options. The exact ROI can vary significantly depending on the situation, but to help you decide, here's a look at the elements you need to consider. Signage Objectives To effectively measure the ROI of a billboard or a video wall, start by thinking of the objectives you want your signage to accomplish.