I always loved that sense of wonder and mystery you get every time you pour over a new map, be it of a real place or imagined. I also love historical maps, especially those of urban areas, and try to image what life was like back then - what would people have seen that I can still see today, and what did they see that is no longer standing. I love collecting digital and printed maps of my home, New York City, and seeing the changes over time, and then trying to research how and why these changes came about.
But considering what brings us all to this forum, I'm probably preaching to the choir.