As unpowered entities never go to sleep and stay active, it would be great to be able to find these; I come across them from time to time, in places where I might have forgotten a power pole or did a non-complete disassembly of a section, and would love to be able to find these entities to clean it up.
And I don't know how much of a load they are exactly, but finding dropped items that are not on belts would also be a welcome addition to the tools for me.