As technology demand accelerates to support the digital business, data centers are running low on physical resource capacity. When provisioning new data center capacity, infrastructure and operations (I&O) pros must decide whether to build a new facility or look to third-party services to expand. For most regions in North America, Europe, and Asia Pacific, high-quality colocation, managed, hosted, and cloud services are readily available, expanding the service options. This report helps I&O pros understand the economic elements of the decision to build the business case for new capacity. This is an update of a previously published report; Forrester reviews and updates it periodically for continued relevance and accuracy.