At the core of the value placed on objects is a preference for the unique individual and may appear as a consequence for attributing property to specific people.

Ex. Studies have found correlations between the worth an individual attributes to an object with the level of sentimental significance or importance of the individual who owns it.
Suggests a connection between significance of an object and the individual related to it, which therefore may act as a heuristic to distinguish material possessions as an extension of self-identity.