For example I can build logistic to check if mine is depleted and would be great to show it on the map when it is. In that way I wouldn't have to run from mine to mine to check it by myself. I could just look at the map and know everything what is happening in entire factory.
P.S. I hope it is understandable what I wrote
![Razz :P](./images/smilies/icon_razz.gif)