Not to pile on to the anecdata here, but I've owned a lot of different Ikea furniture over the years, and in the words of (I think) Douglas Coupland it's "semi-disposable."

Much of it will last a lifetime as long as you never disassemble it or move it further than the next room. Some of it is more fragile than that. Very rarely something is more durable -- here's looking at you, Klippan!