I was in the meeting when the head sysadmin for a large university dumped a box of mouse balls onto a conference room table.
"You turned down my request for optical mice.
You want to know why trouble tickets take so long and I can't get projects finished?
Here's why. Two hundred mouse balls replaced this quarter, thousands cleaned and serviced.
Every time one of my staff touches a mouse with a ball, it costs twice what a modern ball-less mouse would cost.
Every time you cut my capex, you pay twice that in opex."
A truly epic scene.
He got his budget request.