Service retainers usually cap your margins at 30 percent. Stop just selling...

https://blogfreely.net/murciajpvo/customer-acquisition-costs-why-saas-math-breaks-your-agency-model

Service retainers usually cap your margins at 30 percent. Stop just selling labor and treat your agency like a lab to build your own internal tools. That shift lets you build software products that hit 70 percent margins and beyond.