They were cutting back by that time, and to reuse them, you'd need something to desolder all the roms, take apart the cases, ect. I'm betting it's cheaper to dump the cases and make new than open them up, remove the label, and return them to existing assembly line machines. Besides, they had plenty of new cases to use up, and with their over projected sales figures, and time warner dumping them, they'd have to scramble to find use for them.