Well as a child I dont think I would have even noticed if the box was opened, or if it even came in a box, if my Sega Genesis or my new Bike, or what ever was completely out of the box I would not have cared (and pretty sure I got more than a few presents completely pre-assembled), hell if the Genesis already hooked up to the TV ready to play I probably would have preferred that...

Of course now as an adult I hate gifts, I buy what I need/want when I need/want it. I do not want other people to spend money on me at all.. Most holidays have become soo commercialized that the consumerism of it all puts me off