I'm not sure if I posted this in the right place, but it seemed like the most appropriate category of the ones available.
Just wanted to share this article on why we want what we can't have:
Reasons Why We Want What We Can't Have 
It argues that we're always driven to want something more, especially when it concerns material possessions. That brand new watch loses its appeal real fast; before we know it, we're angling for a shiny necklace.
I think this explains, in part, why so many of us have the urge to "keep up with the Joneses." Instead of thinking that we already have more than so many people out there, we harp on the fact that others have more than us -- thus, we yearn for that which is unobtainable, or above our means.
What's your take on this? Is it possible for us to reach a point where we're content with the material possessions we own, or do we have an innate need to always strive for something better?