For our convenience, it is made to put the price we want. Then shipping means different distances firstly and secondly different ways to deliver: by water, by land and by air. This is where the prices differ combined with the third part - the volume and weight of the product that you fill in when registering the item. But - be not worried of so many factors, the price doesn't grow drastically. The shipper delivers a-huge-a-lot, but at once, that makes the price relatively low.