This document discusses different options for deploying a CRM system, including on-premise, privately hosted on-premise, multi-tenant SaaS, and private SaaS. It notes the tradeoffs of each option in terms of cost, customization capabilities, control, and other factors. The document also provides an example of Alaska Airlines using an on-premise Siebel CRM system to gain insights into customer loyalty from various data sources. It concludes by recommending customers consider their specific business needs and level of commitment to CRM when choosing the best deployment option.