Valve’s new hardware is solid but might not justify its $99 price. I am Steam Controller, second of his name! Credit: Kyle Orland I am Steam Controller, second of his name! Credit: Kyle Orland Since time immemorial, serious PC gamers have proselytized about the superiority of mouse and keyboard control schemes over the more input-limited handheld controllers used by most console gamers ( and others ). In recent years, though, many PC gamers have started keeping a spare Xbox controller ( or similar ) nearby for the increasing number of PC games designed primarily or exclusively with thumbsticks and buttons in mind. Valve’s upcoming Steam Controller (not to be confused with the 2015 controller of the same name ) is the Steam maker’s effort to replace those controllers with something more explicitly designed for the PC, and for the upcoming Steam Machine .…