I found this photo by Sarah Kane Hey, Hot Shot blog.
Another definition:
Attachment to materialistic values or possessions

Now that I am working on the Dress Show for Fraction, my next theme to obsess over is consumerism, for now with this definition:the concept that an ever-expanding consumption of goods is advantageous to the economy. (from dictionary.com).
The first two images shown here are by Susana Raab from her portfolio Consumed.