why do we buy?

One of the big market trends in the electronics that I buy is the eco-friendly power saving touch. The idea is that because your computer is efficient it is less harmful to the environment because it takes less energy to accomplish the same thing another computer would. In concept this makes perfect sense, less electricity needed, less "dirty" fuels consumed. What people fail to realize is that some of the processes used to produce eco-friendly technology aren't very ec0-friendly themselves. I don't buy things just because someone tells me that it's a good idea, I buy based on quality, usefulness, and price. Power saving devices are sometimes a smart thing to invest in, they can save you a lot of money, but I don't think you should buy anything just because you're told it helps the environment.