The problem of patina, which McCracken has recently proposed as a general term to deal with that property of goods in which their age becomes a key index of their high status, disguises a deeper dilemma, the dilemma of distinguishing wear from tear. That is, while is many cases, wear is a sign of the right sort of duration in the social life of things, sheer disrepair or decrepitude is not....
Objects with patina are perpetual reminders of the passage of time as a double-edged sword, which credentials the "right" people, just as it threatens the way they lived. Whenever aristocratic lifestyles are threatened, patina acquires a double meaning, indexing both the special status of its owner and the owner's special relationship to a way of life that is no longer available. The latter is what makes patina a truly scarce resource, for it always indicates the fact that a way of living is now gone forever. Yet, this very fact is a guarantee against the newly arrived, for they can acquire objects with patina, but never the subtly embodied anguish of those who can legitimately bemoan the loss of a way of life. Naturally, good imposters may seek to mimic this nostalgic posture as well. but here both performances and reviews are a more tightly regulated affair. It is harder to pretend to have lost something than it is to actually do so, or to claim to have found it. Here material wear cannot disguise social rupture.
-- Arjun Appadurai, 1993, "Consumption, Duration, and History," in Streams of Cultural Capital, D. Palumbo-Liu and H. U. Gumbrecht (eds.), Stanford: Stanford University Press.