Yahoo's corp dev team — fresh off buying Flickr — called Box when it had achieved a whole gigabyte of online storage. The four founders drove down in a falling-apart Nissan minivan, presented their entire strategy, and agreed among themselves they'd be ecstatic to take anything in the $5–10 million range. Two weeks later, they got a polite 'nice meeting you' email. The company that almost sold for $5M is now worth $3.6B.