Cloud infrastructure providers are increasingly adopting consumption-based pricing models, exemplified by platforms like Lago, which utilizes an event-driven architecture capable of processing 15,000 billing events per second. This shift allows for faster revenue growth and aligns prices with the actual value delivered to customers, as 38% of SaaS companies have moved to usage-based billing. Lago provides advanced metering solutions that offer real-time usage tracking, automated revenue recognition, and customizable metric definitions, which help reduce billing errors and improve revenue retention by 25-40%. The adoption of such models has become a competitive necessity, with benefits including enhanced customer expansion rates, improved cost alignment, and the ability to scale without over-provisioning. Despite the challenges of implementing complex pricing systems, Lago's open-source platform offers integration capabilities and operational simplicity, reducing development time and operational overhead while supporting both self-hosted and cloud deployment options.