Some people are so dedicated to their hobbies and I love seeing it.

An extended family member of mine hosted a reunion at his house years ago, and he apparently lived in a neighborhood where many people have small airplane hangars attached to their houses instead of a normal garage. It was nuts. You're just walking through a normal-looking house in a normal-looking suburban neighborhood, go through what would otherwise be a garage door, and suddenly you're in a big hangar.