In my experience, Amazon, B&H, and Adorama are all lousy at packaging. I am sure it is a business decision to save money. The two best camera dealers for packaging I have ever dealt with, by far, are 17th Street Photo and Dale Photo & Digital.
Here is my packaging feedback to Amazon regarding the D600 shipment:
There was ZERO cushioning material between the outer box and the camera box. Not even the usual minimal air pillows. The nice gold Nikon box inside was dinged and dented. I would think for a $2,100 purchase you could spare a little bubble wrap so the product actually looks new upon arrival rather than like it was dropped on the floor and kicked around.