Year after year email marketing has been the most effective marketing channel, with the highest return on investment. Email is in fact a very personal channel! For example, you can address the recipient with his or her first name. And what about measuring interest areas? This way you always send content that is tailored to your recipient, and they are much less likely to see your mails as "irritating spam".
Plenty of reasons to put your money on email marketing, because it is a powerful means to maintain the direct relationship with your customers and to reach prospects. No matter how big your database is, with the right email marketing tool and strategy you always make the content personal and relevant to the recipient.