Their (mostly free) users are the only asset they have. They didn't invent container technology, they made a nice interface that popularized it. That's fine, th

Their (mostly free) users are the only asset they have. They didn't invent container technology, they made a nice interface that popularized it. That's fine, they did a good job, but it seems like they are getting funding on the premise that they're somehow going to be able to get money out of everyone running linux containers. What services does Docker actually provide? You don't need a crystal ball to know hosting image tarballs is going to be a very low margin business, even if you have the HUGE advantage of baking your URL into the client. And once you kill that goose, even if it only lays copper eggs, it's not coming back. Once users don't use docker.io, what relevance will the Docker client have?