With Netflix spending a reported $100 million to produce two 13-episode seasons of House of Cards, they need 520,834 people to sign up for a $7.99 subscription for two years to break even. To do that five times every year, then, the streaming TV site would have to sign up more 2.6 million subscribers than they would have. That sounds daunting, but at the moment, Netflix has 33.3 million subscribers, so this is an increase of less than 10 percent on their current customer base. Of course, looking at Netflix's past growth, that represents pretty reasonable growth for the company that saw 65 percent growth from 20 million to over 33 million world-wide streaming customers. Much of that growth, however, comes from new overseas markets. But, even in the U.S., from one year ago, Netflix saw about 13 percent streaming viewer growth jumping from 24 million to 27 million.
Great breakdown of Netflix's business model of producing content itself.