> I personally like the isolation they provide and generally prefer running services in containers, even if they are using the same dependencies as my OS.

I would also not downplay the importance of Docker's support for software-defined networks and it's ability to arbitrarily configure networking at the container level.

I firmly believe that networking doesn't pop up so often while discussing Docker because Docker solves that problem so fantastically well that a complex problem simply ceases to exist and completely abandons everyone's mental model.