One of the really neat things about having it modular is that I can have separate coveys and/or an introduction space where they can see but not touch. When I'm ready for them to get together, all I have to do is open the door between the sections.That's sweet! I want to build my tiny breeder aviaries out of aluminum framing when that project gets more dollars. And maybe one day have aluminum tractors as well...
Edit: Another great thing about all the space is that I can hatch a lot and have space for them until I sell or slaughter the extras.