This must be passion in its fullest expression. Think about it : the guy collects as many (original) copies as he can grasp of only one album : the "White" album by The Beatles. And more than that, against the mythical "mint" condition, he prefers the copies which were scribbled, sketched, customized over the years by their former owners.
Mr. Chang is having an exhibition about his passion (obsession ?), titled "We Buy White Albums" (because, yeah, he would buy your copy) and if you live close by, you should go.