Cool piece in the WSJ about Ian Purkayastha, a 23-year-old truffle broker in NYC that supplies more than 80 percent of the Michelin star restaurants in Manhattan. At age 15, he used his savings to buy a kilo of truffles from France, closing close to $300,000 in sales his senior year in high school. This year, he is projected to earn $3 million to $4 million in sales. Forbes has also dubbed him as the "Prince of Truffles". Now that's what they call a niche market. Read on, here.