One telltale sign: the new Millionaire Fair, where vendors come to show off big-ticket items like helicopters, jewel-encrusted pencils and baby bottles made of gold.

• 一个有力的论据就是，一次奢侈品展会中，展商展出了诸如直升飞机、镶钻的铅笔和黄金制成的奶瓶。