This is what I call the concept of hypermaterialism. It doesn't mean buying everything, rather owning only what you need and a relentless pursuit of quality, as outlined in the book Zen and the Art of Motorcycle Maintenance.
There is a famous photo of the worldly possessions of Mahatma Gandhi at the time of his death: a bowl, a couple books, his eyeglassses and sandals, some writing implements and a three porcelain monkeys-- not enough to fill a banker box.
We can be owned by our possessions in so many ways. We frustrate outselves with storing, organizing and maintaining them. They can rob our space, time and finances and bring us stress. I worked in the auto repair industry for many years and I saw many people dragged down trying to own a car when they really didn't need one. They got caught up in not being able to afford a reliable car and poured their resources into broken down vehicle and lived with the strees of being stranded by a junker. I now work in the electronics reycling industry and see a steady stream of cast-off toys-- most of which still work. Our media and computing binge is shameful.
It really struck me the other day when I was changing channels and landed on an infomercial for vaccum storage bags for clothing. They showed these massive piles of clothing sucked into small packages with a vacuum cleaner. Of course the concept they missed is that they don't need 10 or 20 sweaters! If you have more sweaters than you can wear AND store, it's time to give some to people who need them.
My other favorite example is the chapter on economy in Thoreau's Walden. http://xroads.virginia.edu/~HYPER/WALDEN/hdt01.html. And he saw it happening in 1854, let alone 2009.