As you can see, digital advertising went from just under 10% of all advertising in 2006 to over 62% currently. There is a reason that newspapers have struggled when you realize that amount of ad revenue they have lost during that period, coupled with a major recession.
One of the many benefits of digital marketing is the ability to do precise audience targeting. An example of this is the ability to pick a very precise geographic area, such as a convention with known and defined customer interest, and target all mobile devices in the area of the convention with advertising aimed at a group known to have an interest in a particular product or service. An add could be delivered via Google, Facebook, or other social media. This is just one example of using digital media to reach a very specific audience. Try doing that with a Newspaper Add.