For example, the woman who bought Gucci shoes would not spend more money on first class airfare.

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"If you come to a major race meeting wearing expensive Gucci shoes you deserve to get them dirty, " Payne said.

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As I plugged my earphones into my iPod and flipped through some magazines, the woman who bought the Gucci shoes walked down the aisle, carrying many plastic bags of duty-free goods.

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Black, shiny lace-up Gucci shoes, to be precise.

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Alexander McQueen, one of the Gucci group's acclaimed designers, has been making shoes for Puma since 2005.

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Louboutin sued YSL, a unit of Gucci Group, on April 7, 2011 after the fashion house announced plans to sell a line of monocolored shoes, including red shoes with red soles.

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