Are you? A coin (or paper money) collector? We all collect money to save or spend, but numismatists collect coins and paper money as a hobby; for the beauty or rarity of the item.
An interesting web site that I came across is the American Numismatic Association. The actual money museum is in Colorado but their web site includes a virtual tour, a great deal of information on collecting, and information about the state quarters.
Libraries also have books on coin collecting. Look in the 737.4 nonfiction section for books to help you get started.