I don't think I've sunk as much time into any other mechanic in the game as I have with the map. Especially with mods like draw on map and map symbol size changer to do fine details.
I end up using the map for everything, like to-do lists, shopping lists, route planning... I have no idea how I used to play this game before and I never want to go back.
Do you guys like the map too?
Yeah I rely heavily on the map too, 1000+ hours for me on this game.
One of the more useful things I've done with it recently is mark out trails when needed through forested areas.
If its a very high risk run like going across Louisville I'll mark my turns like a GPS.
Final tip is that you can open your map and still use and mark on it while paused by opening the map and using F2 to pause.