What are the top Marketing CRM success stories?

What are some examples of marketing CRM success stories, where companies have experienced sustainable benefits? Please quote specific metrics and include aspects of strategy, database marketing, technology and analytics where possible. Please do NOT quote a simple response rate improvement using a model.

An interesting thought to your question, and one I have struggled with for years...is what would your metrics have been (sales successes) without CRM, and even deeper without the Salesman. I think people have to start to show statistically significant gains by using CRM (and Salesman) over the baseline that a given customer set would produce without either...then compare the investment. If they have those metrics they should add them when responding to your question. And, they should show whether the customer set is new accounts or existing customers and if existing what is the normal turnover (loss rates) and natural revenue projections which can be negative (this is especially true for some industries like software where it is shifting from a revenue growth per seat to a revenue decline per seat). Without the context the metrics tell an incomplete story.