Just make sure if you do pack them yourself to put packing all around it. I've had fragile items arrive broken, despite arriving in what initially looks like good packaging. Some people will put the item in the box, THEN put all the packaging in. Then the box gets dropped and the contents break because while they have included a lot of packaging, the item was sitting on the bottom of the box, with only a layer of cardboard between it and the outside world. Put a layer of packaging in the bottom (bubble wrap. packing peanuts, newspaper), place the bubble wrapped item on top, then add another layer of packaging over the top (and of course around the sides as well!). The most important thing is to make sure there is no movement in the box. Once you've stuffed everything in, hold the top closed and shake the box. If there is any movement whatsoever, add more packing material until you can shake it and there is absolutely no movement at all.
