They do have added value! They are managed by the package manager, so trivial to add/remove/update, and I'm sure there are good reasons for those two directories.
-- What is added value of texlive packages vis-à-vis TeXLiveCD from TUG? https://launchpad.net/bugs/67441 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
