Sometimes you really have to decide to take the risk and ship without a standard controller before you can see if the new model will work. The iPhone was famous

Sometimes you really have to decide to take the risk and ship without a standard controller before you can see if the new model will work. The iPhone was famously derided for a lack of stylus. Video game consoles for years have tried to incorporate motion controls in some form or another and realistically only the Wii succeeded in any measure because they ditched the classic controller instead of trying to shoehorn it in. Many times it doesn't work, but if you give developers and users an "easy escape hatch" to go back to what they're already comfortable with, so many of them will default to that no matter how much better your new option might be.