The reasoning behind iDVD and iWeb being retired from factory-fresh Macs is as jdiamond posted. iDVD has not been upgraded, no features, no additional themes added, since the '08 version. Also, Apple's going in the direction of digital distribution, which is why iMovie has options for exporting to YouTube, to Facebook, Vimeo. iWeb hasn't had any changes since the '09 version, and with MobileMe and iDisk going away in June 2012, users will have to host their sites with 3rd parties like GoDaddy, Network Solutions, etc. There are free and paid alternatives to iDVD, on the Mac App Store and on the Internet, and some of them offer features that weren't in iDVD to begin with.