That's a part of IKEA's appeal. Because of the consistent quality and the extensive market share, there's a lively secondary market for the furniture. At least

That's a part of IKEA's appeal. Because of the consistent quality and the extensive market share, there's a lively secondary market for the furniture. At least in Europe. You simply cannot sell (or even give away) similarly priced furniture of other brands but there's demand for second hand IKEA.