Sarah Thornton, Seven Days in the Art World

p99: More people than ever are buying contemporary art, and chances are that most of it is historically insignificant.  It may be personally meaningful, intelligent, even edifying, but in the long term many of these collections will end up looking like the tattered silks of an age gone by or the archeological remains of an ancient garbage heap.  They won't be definitive or influential.  They will not have changed the way we look at art.