While some collectors look for only coins of value, misprints, and oddities, the resulting collections tend to become an investment hidden away in a safe or an attic.

The world coin collector is more a person who is interesting in building an intriguing collection based more on geography, gathering coins from every country, or from each mint. The focus is more on creating a structured set and can be geared toward many different interests, ie. Animal coins of Europe, Silver coins of the world, North American coins sorted by year, ect