We have a very unique structure at the university. Our clients are our 4000+ staff, faculty and students, all of whom have standalone laptop systems, not part of our managed systems. We are currently looking into putting our own ubuntu repository online for custom packages and updated revisions, but the headaches of this breaking mainline repository updates is daunting.
The bulk of the systems (again, 4000+ laptops) never pass through our hands, so we can't configure them ourselves, and would have to provide documentation on this to the masses, 80% of whom would have no issues, and 20% of whom we'd end up having to handhold through the process of adding custom respositories, 5% of whom we'd have to see in person.
We have a not insignificant amount of users, primarily library staff and long time faculty who are on the far side of 60 years old, and are resentful and afraid of the picture box with the typewriter.
All in all, not insurmountable, just daunting, and it will be tackled some day, but the 2008-2009 school year marked the first year of official adoption by the faculty of OSS packages. We're still hammering out the wrinkles.
And no, my official title is "Technology Services Consultant", but I act as backup to the software license officer when he is otherwise indisposed.