Me? I just get close enough to that math via glances at my Points that're worthless otherwise and the Shelf of Shame that is my not-installed-yet(ever) library section — which is easily half, at a guess, and stands in daunting triple digits. 😅
It's total amount of funds added to the account, so it's actually price you paid in a total amount. I am ashamed of my number but I'm sure there's worse out there