They don't have to change the per crown cost ratio though, they could for example introduce a 105k pack for exactly 5x the cost of the 21k pack and then all that does is make it so you're not annoying people that don't have access to a cart by making them check out 5 separate times if they were going to buy that many crowns anyway. Obviously it would be great for us customers if they did continue to drop the per crown cost for increasingly bigger packs, and they might entice more people to buy it by doing so!