If you consider it work, then it's probably not a good investment for you. I like doing it. It's like telling Jay Leno that restoring an old car isn't worth the money since it costs less to get someone else to do it (especially at his Salary). Some things are their own reward. Running my own mail server is very much worth my time.

Also, my quoted 3 man days is a huge guess. I don't keep track of that stuff. It's 15 minutes or an hour here and there...