How do you attach multiple pages together? I use a stapler about as often as I use a printer, which is to say about once every month or two.
When working on the office, it makes perfect sense to buy plenty of them so everybody would have one nearby (at the same cabinet as the perforator, folders, printer paper, extra sticky notes, pens, and whatever else).
When working at home, I'd guess it's used exactly never, so yes, it doesn't make sense to buy them.
Does everybody at Google work at home?
Anyway, the stapler is the most interesting part of the headline. How much did it cost to decide to stop buying them? Does it save enough to pay the decision-making?