Unlikely as the Moonsea in Faerun is a looooong way from the Sword Coast. It has the Anauroch Desert, the Western Heartlands, the Dales region between it. The Sword Coast book should logically have maps dedicated to the Sword Coast region.
Like you Im a visual person, Im also a big lover of maps and cartography (but not doing it myself). I have actually printed and laminated some 3e era FR maps. I basically just image search the net, and print out some finds and laminate those. So i have about 3-4 versions of the same area. i found an old hillsfar one on Photobucket that I use.
Again they are not really needed but i like Context. So I show where hillsfar is and Mulmaster and it helps people create stories for themselves why their characters sailed to the region. While Organised Play is genuinely focused on suspension of belief.. that is your characters have magically moved from X to Y with no clear reasoning, it does help your players to have a geographical idea of whats going on.
I have also had players say 'I want to be from Melvaunt.. whats there?' when they see the map. Which is cool, the map is creating their background. I assume they go off and do their own research . Its the little things like that I like. which add some creativity to the game. Far too many pick Background Criminal or Background Noble and do absolutely nothing with any of their traits or flaws.