Love maps.
Have three huge French IGN maps of the world framed on the wall at Tartare Towers - in view of the kitchen table.
Tartarettes invariably ask a question or two relating to geography or politics during their dinner.
Take your point Thing, but I'd personally feel very uncomfortable behind perspex at altitude without the carefully folded piece of paper on my lap.
Orientated in the direction of flight of course.
A map with a bullet in it is still a map...