The market for dogs is highly speculative: The new hot breeds fall from favor as quickly as they rise, and values can soar or plummet. With breeders adopting herd-like instincts, dogs are propagating in profusion, so that supply often exceeds demand.
狗市被炒得熱鬧滾滾，一段時間總要換一種狗流行。流行時固然風光，但流行風跑得也很快，黑的一下轉白，狗價立刻暴跌。