There is the risk that the manufacturer or planning authority may be out of touch with what consumers want and are prepared to buy. Some goods may consequently be over-produced so that unsold stocks pile up in the shops. In other cases, production may be insufficient to meet consumer demands, so that shortages occur. Furthermore, the emphasis of the producer can easily become too geared to quantity, with insufficient regard being given to the quality or suitability of the product to consumer requirements.
2. If you like it, they don't have it in your size. If you like it and its fits, you can't afford it. If you like it and it's in your size, it doesn't fit anyway.