Do you rejoice when you get an email about an upgrade of the vending machines in the company cafeteria, or do you worry about the new machines not carrying the kind of soft drinks or candy bars you're used to? That's basically how a typical office worker feels about computers. Spend a week working helpdesk and you'll understand that very very clearly.
That's why when you manage a large pool of workstations you want the bare minimum that users need to do their work, and why you want that bare minimum to be set in stone. Otherwise you're just annoying users and adding more support tickets to your queue.
I could not agree more.