In this brief monologue, Eric Siu urges marketers to prioritize building a newsletter because it grants direct control over first‑party data—names, emails, business type, titles, and even revenue information. Owning this data enables higher‑margin promotion of one’s own products or services (and optionally third‑party offers), allows precise control over the subscriber experience, and ultimately drives higher customer lifetime value and overall revenue.
I highly recommend everyone focuses on growing a newsletter right now because when you control first-party data in a newsletter, you basically have data around their name, their email, maybe around the revenue, the type of business that they're in, the title that they have. You have a lot more power and there's a lot more that you can do with it. If you have a newsletter, you are going to be promoting your products, your services, potentially you can promote other stuff if you want, but you're gonna get the highest margin there. And you can also control the quality of the experience, the quality of the service that you might have. And ultimately you're gonna be able to increase your lifetime values and collect the most revenues at the end of the day.
