Just wondering since my time machine used external hard drive appears to be unusable, how long do people keep their old hard drives for? I have a bunch, for various reasons unused, in a fire safe but was wondering how long I would keep them for. I can't even imagine why I would need to find something on one of them since all the info is always passed on to any new computer and new external drive. Anything I deleted from an old computer, well, I doubt I would even remember those pictures or files or even where they were buried on the old drive. On the other hand, it doesn't hurt to save them. What do you do?