You are your inbox. I'm a hoarder, but I disagree that my life is cluttered in other areas. And I don't think I have unfinished business in my life. I keep my emails because most of it is business related and I need to keep them for record-keeping. But I also keep all my personal correspondence because they're special even if short and casual. What if the person on the other end of the email correspondence dies, I like to remember them any way I can. Why delete stuff that doesn't take up much room, anyway? I could store all my email messages and then some on a single DVD-R.