The main reason I even own a controller for my PC is because there are dozens of Steam games I own that are either unplayable (Super Meat Boy, for example) or just not that fun (every other platformer, among plenty others) without one.
When a boy lost an arm in the cog-wheels of a steam winch owned by Lord Wimborne, the courts ruled in a landmark judgment in 1898 that the factory boss had breached an absolute duty imposed on him by statute.