A single, game-used Babe Ruth baseball can sell for over $1 million. elaborate
Some key collectors, known as key enthusiasts or keyophiles, categorize their keys not only by type of lock but also by the maker's mark or unique design features on the key's bitting (the part that interacts with the lock). elaborate
The term "record collecting" itself is somewhat outdated; many collectors now prefer "vinyl collecting" to encompass the various formats beyond just LPs. elaborate
Some map collectors specialize in maps depicting fictional places, like those from literature or fantasy games. elaborate
Some rocks are more valuable than gold. Rare gemstones and meteorites can fetch incredibly high prices. elaborate
The term for someone who collects flags is a vexillologist. elaborate
The value of a coin isn't solely determined by its age; condition (grading) is often the biggest factor, with even common coins in perfect condition fetching high prices. elaborate