This system has been in place for decades but it’s starting to unravel. As DiamondExpert points out, it can get expensive for both of the dealers involved and other distribution channels have appeared that are less expensive albeit less convenient for the consumer. Classically the dealers have been able to offer this as a ‘free’ service but they are finding this increasingly difficult to do since most of their costs are incurred before the actual sale happens and they find themselves in the position of offering this benefit to the customers for free and then losing the final sale, and the related revenue, to a dealer that has less overhead.