I'm the guy who keeps every box....hardware and software....😱
Everything from my first iPod, to tiger, to all the music software (reason and recycle are ridiculously big boxes)
I think a better question is "why are software boxes so huge!!" what a waste, I see that Apple has made their new software in smaller jewel case size boxes, which is great.
Speaking of Recycle, the stupid app asks me to insert the CD, and enter a SN everytime I open it after a reboot...that's one reason why I kept that big clunky box on my shelf..I've since figured out how to just make a mountable DMG out of it, and paste my SN to a sticky, but what a pain.
I keep my iSight box on display cuz it's cool looking...but I think I need to clean house soon..