Dell Windows Install Disks

I read on this blog that Dell -- one time only -- will give you a copy of the installation disks that came with your computer in case you lost them. I'm not sure if they charge you for the install disks (I don't see a discussion of payment on the initial page for it, and I'm not going to type in my information since I have the install disks already and I'd rather wait until I've lost them before ordering them)
Yet another reason I like Dell.