> Gonna disagree there: green circuits (and their descendents) are needed often enough and in high enough volumes that it absolutely makes sense to bus them.

I think your parent was making a different argument.

Sure you use green circuits everywhere, but your compression ratio on belts is only 2.5 : 1. Not much better than gears, and I don't think anyone recommends centralizing gear production.

I too centralize green circuit production, but I think it's on the edge of what's reasonable

IMO, the thing that pushes it over the edge for me is that it takes 2 inputs (copper and iron), whereas resources that I distribute like gears or pipes only have 1 input.