Presently there are several simple-looking shelves out there which are SO similar in form and look. The price varies a lot though.
The large one costs SEK 2.299 and is of aluminum. Comes in black or white. Is 100 cm long.
Comes in dark grey, white or yellow. Material: lacquered steel. Price SEK 199. Is 80 cm long.
3. TEKKA at INFURN*) Comes in black, white or walnut. Material: MDF. Price SEK 3.829. Is 200 cm long.
I am certain that there are more similar shelves out there. I like them all when it comes to looks. When it comes to price, I would definitely favor the Ikea model. I think it is ridiculous to pay more for such a simple shelf. The Ikea-one is really nice.
*Note that Infurn.com has gone belly-up and is no more.