We live in a capitalist society where the value and price of any given commodity will be directly determined by the interrelated concepts of supply and demand in that the more readily available a particular resource it is, the less it will cost the purchaser and the converse is also true which is why gold is far more expensive than the likes of coal. The coloring pages are also good for sharing between kids as a sign of real friendship. And we can ensure you that coloring activity, that soon will give the sense of colour and style, will be one of the most looked after activities once your children will got used to it. My boys bedroom is covered in his colorful works and it has been great to watch his development, especially his improvements in writing his name. He has really come on well and I know one day soon I will be packing them up and storing them in my memories box to remind me of happy times!