I backline tech about twenty shows a year with a company that provides real gear that is maintained. Stuff breaks (except GK it seems), we always have a spare, and unless abuse is invloved (drummer trashing the kit) It is just a part of doing business.
Of course, that's true if that's the business you're in. Most of us are players, not equipment rental companies. It's not a part of most players' business model (assuming they even have one) to factor in breakage.
I would buy you a beer too dude