Direct mail and EDDM are great because they are multi-sensory! Direct mail is one of the only ways to put a physical marketing or advertising piece into the hands of your prrospects cost effectively. Everyone still has to check their physical mail every day, read the incoming mail, and decide if it is junk mail or not. This is not true of email or social media, as these advertising mediums can easily be ignored. If you ignore the mail, it becomes a physical obstacle that your recipient has no choice but to review.