A hobby called numismatics.
Coin collecting is formally known as "numismatics" and people who participate in numismatics are known as numismatists.
Numismatics
Burton Hobson has written: 'Coin identifier' -- subject(s): Coins 'Coin collecting as a hobby' -- subject(s): Coins, Collectors and collecting, Juvenile literature, Numismatics 'Stamp collecting as a hobby' -- subject(s): Stamp collecting 'Historic gold coins of the world: from Croesus to Elizabeth II' -- subject(s): Gold coins 'Illustrated encyclopedia of world coins' -- subject(s): Coins, Dictionaries, Encyclopedias 'Picture guide to coin conditions' -- subject(s): Numismatics 'Hidden values in coins' -- subject(s): Coins 'International guide to coin collecting' -- subject(s): Coins 'Stamp Collecting for Beginners' 'Getting started in stamp collecting' -- subject(s): Stamp collecting 'Coins and coin collecting' -- subject(s): Coins 'Catalogue of Scandinavian coins' -- subject(s): Scandinavian Coins
I have coins because they are worth something, and I enjoy collecting them.
Someone who actively persues any hobby as a pastime, such as stamp collecting, or the building of model ships, etc.
Joseph Coffin has written: 'The complete book of coin collecting' -- subject(s): Coins, Collectors and collecting, Numismatics 'Coins of the popes' -- subject(s): Papal Coins
=Numismatics=
Numismatics. the collecting of coins.
Numismatics
by collecting from your animals
yes
The minigame Galaxy Monkey.