Microsoft CEO says
"Given the evolution of the Web and our strategy, we believe the next generation of search is about the development of an underlying, sustainable business model for the search engine, consumer, and content partner. For example, this past Wednesday we announced our strategy to focus on verticals with high commercial intent, such as travel, and offer users cash back on their purchases from our advertisers."Google Founders says
"Our goal is to develop services that significantly improve the lives of as many people as possible. In pursuing this goal, we may do things that we believe have a positive impact on the world, even if the near term financial returns are not obvious. For example, we make our services as widely available as we can by supporting over 90 languages and by providing most services for free," wrote Google's founders in the IPO letter.
From the above statement its obvious that Microsoft focus only on making more profit rather satisfying the customer need. One example is the recent launch of Cash Back Live Search that pays money for users. Also MS has closed their book search engine because it doesn't pour $$.