Agree! This with Recursive blueprints is truly what Factorio is about. I'm making turtle^2 walls of death. That means I'm wall turtling automatically with something like turtle graphics to wrap my base in laser defence :)
Circuit wiring is annoying and painful and combinator circuits are unreadable. Praise the power of textual programming languages!
And pushbutton to start and command your Lua combinators. Or remote switches with visual signals to do it from anywhere. :)