1)Email Lists Are Easily Segmented
List segmentation is one of the most important ingredients of effective email marketing. It ensures that the right messages meet the right audiences, reduces unsubscribes, raises conversion rates and helps to make sure that your emails are welcomed, read and acted upon.
2) Email Delivers Only One Kind of Response
Social media is a dialogue. Post a tweet on Twitter or update your status on Facebook, and people will respond. What you intended as a quick advert has become a customer service conversation with dozens. That might be part of doing business but email marketing is much more direct and much easier.
3)Email Has Numbers
Or rather, you can send, measure and forget because unlike social media marketing, email marketing delivers a pile of figures. Those numbers start with the potentially enormous size of a list — an audience much larger than a typical list of Facebook friends.