It may take couple of hours to make your first Unattended Windows XP disc, but after that, updating a 3-6 month old unattended source should take only 10 mins at least, as you only need to add extra hotfixes, or replace applications with newer versions (and in most cases the switches stay the same) So in my opinion, it is worth it, even though I only use it on 2 home workstation PCs. It's also a good learning curve should you ever get a job in IT Administration.