Recency I read an article about growth of dropbox. Drop is growing with an amazing pace with 50 million users already with only less than 10% paid customers. They are expecting that next year their user base will be double the current number. And it seems even if they don't get even a single paid customer, they revenue would get doubled. How does this work?
I read the Dropbox: The Inside Story Of Tech's Hottest Startup article. The reason they expect their revenue to double even if they don't get a single NEW user is because they expect more of the current 50 million users to become paying customers.