Well put, as long as they are responsible system administrators Perl will live. Python/Ruby would never play well in an admin's toolbox.
That said, I think you can still be responsible and use Python instead. ;) Might take you a few more keystrokes though.
we've had 90% complete python tools rewritten from scratch in perl because perl is so superior.
disclaimer: i'm a recovering ex-sysadmin
What about Python was getting you stuck at 90%?