When do you think it's acceptable to trash packaging and its contents of aged computer hardware? I've felt bad for making the decision due to space constraints, only to regret it a decade later, but at least I always keep the driver discs.
One day, I decided that I would photograph boxes and such before throwing them out, just in case there is something I want to look back to and remember.
I always try to keep boxes for graphics, for their design have a special place in my heart, but I find it easy to discard something like CPU packaging due to their plain design.