I used to work in shipping/receiving and system integration at my company. Approximately 25-35% of the shipments received (and sent!) were "impacted" in some way, as in the boxes were damaged. The contents were not often damaged since they were packed well (Sun ships power cords in individual boxes). Sometimes they were though, such as by being "forked" or dropped off a truck.
Stuff sent from HP, Sun, etc always came packed to an almost ridiculous degree. Whereas we would order, say, 5 ATX cases from Newegg...they would ship these in the manufacturer boxes and 2-3 would be dented, occasionally plastic parts broken off, etc. I would expect better from Newegg but they just keep RMAing them in the same boxes. People send stuff packed like they're going to drive it down the street themselves and they don't realize the hands, belts, trucks, planes etc it goes through to get to its actual destination...
One thing that really helps is to note that most boxes only survive one transit. People keep using boxes over and over, but they lose their rigidity quite quickly (especially cheap ones).
I've happily never had bad experiences with Amiga stuff, although BOTH my A4000T and A3000UX were packed very poorly.
