Right, as far as I understand it, that's a general pattern for breweries expanding production beyond their current capacity, or to geographically remote areas.

What I'm talking about seems a little different though: it's very, very, small craft breweries which don't have any of their own equipment (except presumably small-batch/homebrew equipment used in creating their recipes in the first place), and do all their actual production brewing on the premises of another brewery, usually located in the same city.

Maybe they work the same way, but I can't help but think that the latter type would be more involved in the process... :]