Compiz Fusion is a great application, and most effects look awesome. However, it runs to 5% its capacity without compizconfig-settings-manager installed (unless you know how to configure it manually, thought that can be a pain in the ass). Thats why I think ccsm should be installed by default on Ubuntu for easier using of "other" plugins by new users.
EDIT: If you want simple-ccsm to be installed by default promote this idea, since they are pretty similar.
EDIT2: No, this will not make Ubuntu slower. Compiz Fusion is already installed by default since Gutsy, all I want is the configuration tool for Compiz (a very little app) to be installed. All what ccsm (or sccsm) does is to change configuration files.