n.the amount a willing buyer would pay a willing seller in an unregulated marketBrichford 1977, 8Manuscript copies and galleys of published works should be kept only if they show significant change or if they have exhibit or commercial value.Rendell 1983, 312Conversely, a collection of great value to one institution may be of no value whatsoever to other institutions or to private collectors. Its commercial value therefore is limited to the amount an interested party is willing to pay for it. No matter how important a collection may be, if the interested institution has no budget and has no prospects of raising the money, and if the material is not of interest to anyone else, then its commercial value is virtually nonexistent. Value is not determined by what the archives would like to pay if it had the funds nor by what it would like to pay if the collection's value only to the archives, not to others, is considered.
