A collectible (or collectable) is typically a manufactured item designed for people to collect. In this respect, they are distinguishable from other subjects of collections, which may also include natural objects (e.g., butterflies) and objects manufactured for purposes other than collecting (e.g., stamps). Some objects designed for other purposes, such as toys, become so popular among collectors that they are later marketed specifically to that audience. The high price for certain older Star Wars action figures is a good example of this phenomenon since the figures were originally intended to be purchased as toys rather than collectibles.
Occasionally, a series of circumstances will take place that result in an item from a collectible series becoming exceptionally valuable. These objects are referred to as collector's items due to their rarity, and these objects have occasionally been valuable enough to be sold for substantial amounts of money.
To encourage collecting, manufacturers often create an entire series of a given collectible, with each item differentiated in some fashion. Examples include sports cards depicting individual players, or different designs of Beanie Baby. Enthusiasts will often try to assemble a complete set of the available variations.
The early versions of a product, manufactured in smaller quantities before its popularity as a collectible developed, sometimes command exorbitant premiums on the secondary market. In a mature market, collectibles rarely prove to be a spectacular investment.