Installation DVD with multiple desktop environments

Ubuntu should be available as a live/install DVD that comes with Gnome, KDE, Xfce, and perhaps other desktop environments. Ideally, it would have equal priority to the CDs that only come with one, which would include being released at the same times. When booting from the disk, users should have an option of which environment to use. When installing, users should be able to chose which environments to install, and have options for installing additional packages designed for those environments (like the gnome and kde packages).

This would allow multiple people who prefer different environments to use the same installation disk. It would be more convenient for people who want to have e.g. both KDE and Gnome. It would make it easier for people new to Linux to learn which environment they prefer. It would make it easier for lesser used environments to gain new users. It would put all supported desktop environments on a more equal ground, rather than sanctioning one as the only "real" and "official" desktop environment for Ubuntu.