There are many components of a great marketing strategy to drive sales growth.
But email needs to be the hub.
#1 - Automation - you are busy. Plan and schedule your engagements, so your contacts are always connected.
#2 - You own the list. The contacts are yours, not the service provider, not the third-party system.
#3 - You can view engagement specific to each contact.
#4 - When you hit send, your message is delivered directly to your contacts.
#5 - It can be personal. Using merge fields and segmentation, you can send the right message at the right time.