High prices delivered ice cold
An amusing New York Times story (registration required) on the more expensive the stores the colder the temperature:
A recent experiment in which a reporter visited various commercial corners of Manhattan with a high-grade thermometer found that almost without fail, the more ritzy the establishment is trying to be, the colder the air-conditioning is kept. In other words, the higher the prices, the lower the temperatures. Consider the clothing stores: Bergdorf Goodman, 68.3 degrees; Bloomingdale's, 70.8; Macy's 73.1; Club Monaco, 74.0; the Original Levi's Store, 76.8; Old Navy 80.3.
...The idea of enticing customers with air-conditioning dates to early-20th-century movie houses. The managers would often keep the front doors open to allow cool "advertising air" to spill out onto the sidewalk to attract sweltering passers-by.