The article discusses the shift from on-premise software solutions to cloud-based ones, particularly when it comes to billing systems. It highlights the pros and cons of building versus buying a billing system, emphasizing that while building one can provide customization and potential cost savings, it also involves complexities such as security issues, dependencies on third-party services, and ongoing maintenance challenges. On the other hand, purchasing a ready-made billing solution offers instant implementation, industry best practices, streamlined integrations, and continual support from the vendor. The article concludes by suggesting that businesses should conduct a thorough evaluation of their specific circumstances before making an informed decision between building or buying a recurring billing management solution.