
What makes up for it, is that it can automatically mine copper and lead veins, and is very cheap (30 silicon and lead in an Air Factory). It doesn't have the massive hp pool of other units, it has no weaponry and can't defend itself, and it can't even be used like the Crawler to help impede enemies.

While units are always lost, the amount of building destruction varies depending on how you failed. If for whatever reason you lose a level, rather than start from scratch, you spawn back at the same point with your previous structures in various levels of decay/destruction, allowing you to quickly reconnect and rebuild your old supply lines.The only conveyor that does need power is the phase conveyor, but that one requires late-game materials and it basically functions as a medium-range item teleporter. This is presumably because having to deal with power logistics to just transport items from A to B would be needlessly irritating and boring. Conveyors don't need any power to function.

Once again, supplying units would make the already difficult logistics required to maintain supplies and turrets into a positive nightmare.

Ammunition limits only apply to turrets units can fire for eternity.This is presumably both to allow a more natural method of progression involving power and prevent the player from getting bogged down with power nodes and generators. Conveyors, Mechanical drills, and lots of other early game equipment don't need power to run.All power lines have no maximum power input or output, so that players won't have to deal with building massive numbers of power nodes to supply power from their source.
