Answer, Because they have always been.
Simon Lee, 46 and former advertising executive set up Greenpac to improve the packaging ills that plague today's disposable society. With the backing of some wealthy private investors Lee made the humble shoebox his first target because of the billions of tons of waste cardboard used. His solution was a flat-pack version that used half the material of a normal shoebox and weighed half as much. It was also easy to recycle. The "pacshoe, a concept he patented three years ago, saves New Look, the discount fashion chain from dumping an annual 520 million tons of waste, which has slashed its rubbish collection bill by 42 per cent. Next is the latest high street name to consider jettisoning its old shoeboxes for good.