PJ Solomon study on CPM

OOH advertising has the cheapest cost per thousand of any traditional advertising methods. Because of this, OOH is a great way of reaching customers. In a study by PJ Solomon, OOH advertising was found to have the cheapest CPM of any traditional advertising medium. With an average CPM starting at just two dollars for roadside ads such as bulletins and posters, you can reach more people for less money than any other form of marketing. Comparatively, OOH provides unmatched value and allows you to get your message out to more customers for less.

Source: PJ Solomon Media