Why Email Still Wins (And Why Most Brands Waste It) Let me be direct: email marketing is the most profitable channel you'll ever build for your ecommerce business. Not social media. Not paid ads. Not influencer partnerships. Email. At Basic Barista, email consistently generates a huge percentage of our monthly revenue. The kicker? It costs almost nothing to send. No ad spend. No algorithm changes. No platform taking a cut (for the most part). Yet most ecommerce founders I tal