One reason for this pattern is classism: the novelties of the upper classes are held up as glamorous and even virtuous, and that goes away when something is mas

One reason for this pattern is classism: the novelties of the upper classes are held up as glamorous and even virtuous, and that goes away when something is mass-marketed and becomes popular among the lower classes. Eventually, one might even hear words like "disgusting" and "poison" used to describe something that was once considered perfectly wholesome.