The Debian package is a great convenience for me. It configures a user, registers the daemon, and makes installation and upgrade wonderful on Debian. I was surprised when I discovered /var/log/jenkins/jenkins.log with over 2 GB of log information on my machine.
Other Debian packages seem to have some ability to configure their logrotate settings automatically (like Apache, apt, ppp, etc.). It would be nice if Jenkins could do the same.