Editing Collecting (section)

==<span id="Price guide"></span> Value of collected items==
[[File:Herbert Kullmann May 1914 sale catalogue.jpg|thumbnail|Herbert Kullmann, picture sale catalogue by [[Bernheim-Jeune]], Paris, May 1914.]]

After a [[collectable]] has been purchased, its retail price no longer applies and its value is linked to what is called the secondary market. There is no secondary market for an item unless someone is willing to buy it, and an object's value is whatever the buyer is willing to pay. Depending on age, condition, supply, demand, and other factors, individuals, auctioneers, and secondary retailers may sell a collectable for either more or less than what they originally paid for it. Special or limited edition collectables are created with the goal of increasing demand and value of an item due to its rarity. A ''price guide'' is a resource such as a book or website that lists typical selling prices.

Products often become more valuable with age. The term ''[[antique]]'' generally refers to manufactured items made over 100 years ago,<ref>For example, [[U.S. Customs and Border Protection]] requires that an antique "must be over 100 years of age at the time of importation". {{Cite web|url=https://help.cbp.gov/s/article/Article-359?language=en_US|title=Duty on personal and commercial imports of antiques, artwork|last=U.S. Customs and Border Protection, CBP Information Center|access-date=13 June 2020|date=27 September 2019|archive-date=14 June 2020|archive-url=https://web.archive.org/web/20200614061554/https://help.cbp.gov/s/article/Article-359?language=en_US|url-status=dead}}</ref> although in some fields, such as [[antique car]]s, the time frame is less stringent. For [[antique furniture]], the limit has traditionally been set in the 1830s. Collectors and dealers may use the word ''vintage'' to describe older collectables that are too young to be called antiques,<ref>For example, the arts and crafts sales website [[Etsy]] requires "vintage" items sold on their platform to be "at least 20 years old". {{Cite web|url=https://www.etsy.com/help/article/4946/ref|title=Vintage Items on Etsy|date=18 October 2017}}{{Dead link|date=November 2019 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> including [[Art Deco]] and [[Art Nouveau]] items, [[carnival glass|Carnival]] and [[depression glass|Depression]] glass, etc. Items which were once everyday objects but may now be collectable, as almost all examples produced have been destroyed or discarded, are called ''[[ephemera]]''.