“Face it, when your $20 bookshelf broke you just threw it out and went back for another one, right? And why not, they’re so cheap!! (And there’s a bus! And where else can you eat lingonberries?!……) But our demand for highly disposable wood furniture has made Ikea the third-largest wood consumer in the world. Not to mention that the average consumer drives 50 miles round trip to get that $20 bookshelf.”
http://consumerist.com/5321404/why-you-shouldnt-buy-from-ikea

So basically, what this is saying is… Your buying crappy stuff, that then fills landfills cause it does not last, you waste tons of gas to get there and you end up hurting the environment and could have bought a $50 bookshelves that would have lasted you longer…