There's also another variable that the article doesn't explicitly take into account, although it's discussed a little: RIM sells primarily to businesspeople for

There's also another variable that the article doesn't explicitly take into account, although it's discussed a little: RIM sells primarily to businesspeople for whom money is no object when you consider the competitive advantage that the product offers. TiVo, on the other hand, sells an entertainment device to consumers who have to squeeze it into their entertainment budget.