The Light Bulb Conspiracy

Planned lifecycles are not only in fashion since the iPod. Even one of the oldest technical revolutions to mankind already draw its attention to sales strategies of mass production companies.

When the new machines were producing new things so cheaply, that it was hard for consumers to keep up, consumerism changed to shop for fun and not for needs. Since then consumers were seduced by advertising strategies to buy something new always a little earlier.

The Lightbulb Conspiracy aka Pyramids of Waste
Documentary on planned obsolescence (2010)

(thanks to Antje for the link)