I hate to say it but I'm not convinced they're always damaged in shipping. I've received alot of packages, and a number of bows, and its pretty rare to have something damaged.
Anyway, a bow isn't really that fragile compared to say a glass vase, I just think either they're selling something damaged, or they're packaging is just really poor. either way, no fun. Ask the seller to make it right.
D, i think the reason these long, lightweight tubes get dropped may be because they get thrown like fat expensive spears when loading/unloading trucks, thats what I would do if I was mindless and looking for a pick me up during work haha.
If we're talking about the auction site here, I've found that some sellers really do care, well actually most care, but unfortunately some just move to fast for their own good, and dont take precautions. I bought a bunch of 100gr NAP thunderheads there once for a ridiculously cheap price, they turned out to be 125gr. Oops, turns out the seller didnt actually weigh them, or look at them, or think. Fortunately I own a stak of bows that looks like a bamboo forest so they found a home in another setup but still ... for the average weekend warrior wheelie shooter, might have been a dealbreaker.