The issue I think is amazon has boxes in a few standard sizes. As a result for many products, they end up shipping in much larger boxes. I think it is economica

The issue I think is amazon has boxes in a few standard sizes. As a result for many products, they end up shipping in much larger boxes. I think it is economical to procure large amount of boxes in few standard sizes vs. have small quantities of many different boxes. This does lead to increase wastage though.