Traditional SEO retainers cap your agency margins at 30% because you're selling...

https://station-wiki.win/index.php/Bootstrapping_vs._Venture_Capital_for_an_Agency_SaaS:_What_Breaks_First

Traditional SEO retainers cap your agency margins at 30% because you're selling labor. If you turn your internal scripts into repeatable software, you can push those margins past 70%. Treat your agency like a lab to build products, not just hours.