> Dropbox prices are pretty good. I was looking at even AWS s3 _glacier_ and it seems way more expensive. That's because glacier stores exactly what you tell i

> Dropbox prices are pretty good. I was looking at even AWS s3 _glacier_ and it seems way more expensive. That's because glacier stores exactly what you tell it to store. Dropbox is taking advantage of a lot of compression techniques to keep their storage volume down. For example, if two users upload the exact same file twice, they can just store it only once (they can also do this for chunks for files that are identical). > Does this mean that if everyone used their entire capacity it's like a bank run and Dropbox goes out of business? Or is storage actually cheap and AWS makes big margins on it? I don't know about a bank run, but Dropbox would most likely go out of business eventually if everyone used their full capacity and they didn't adjust their pricing structure. There's most likely some customers they take losses on to keep their pricing structure simple.