Caporegime
Amazon does this with motherboards. I had 3 motherboards from them... all came loose with just the manufacturers box plus an address sticker on top.
I'm guessing they do it so their own courier takes extra care delivering since he can see the contents.
If they handle it like you would when take it off the shelve in a shop and put it in your own car then i don't see a problem with that. It's when they throw things into the back of the van that's when it gets problematic.