Deciding whether to build or buy an experimentation platform involves evaluating several key factors, such as the technical expertise of your team, the infrastructure needed, and the ability to maintain the platform. Building a platform in-house requires specialized skills and resources and can be tailored to address unique business challenges but may result in high costs and maintenance demands. On the contrary, purchasing a platform from a SaaS provider offers a quicker, often cost-effective solution with ongoing vendor support, though it might lack customizability for unique infrastructures. Key considerations include your team's experience with similar systems, familiarity with statistical analysis, and the organizational capacity for maintaining the platform. The balance between building and buying may also involve a hybrid approach, depending on the specific needs and constraints of the organization. Establishing a strong experimentation culture is critical for success, and the decision should be informed by a clear understanding of both current capabilities and strategic goals.