Harrah Entertainment needs to decide how to maintain its competitive advantage in attracting, retaining, and regaining customers. Competitors have invested heavily in facilities and copied Harrah's strategies. Harrah relies heavily on customer relationship management (CRM) to understand customer needs better and target promotions cost-effectively. Analysis shows modest offers generate more gambling and focusing on top customers who generate most revenue is important. Harrah should continue leveraging its IT and consider investing in differentiating customer experiences based on analyzing the impact on revenue.