There are pro controllers that cost more than the games people play them on. Should we also ban those? These controllers are far more responsive and accurate, giving you an advantage in multiplayer PVP type games over the standard Dual Shock controller. They may not be as good as mouse and keyboard, but by your logic... Go buy a M&K set up and level the playing field, dominate controller users, whatever. But, what you're asking for is unreasonable.