TLDR: Makes your ads exponentially more cost effective. Increases brand revenue and profitability. Get in direct contact with people who already like you.

Email is without a doubt the best thing you can optimize for your brand if you are already running paid ads. Paid ads are great at bringing traffic to your site, but most visitors leave your site and never come back. When you have a dialed in email system, it allows you to capture more of the traffic that's visiting your site, as well as converting them into paying customers later down the road.

Email is also amazing for staying in touch with your already loyal clients. By sending them frequent campaigns you're able to stay top of mind with your customers who already know like, and trust you.