I have a treadle but haven't been able to sew with it yet. But, if you want to use your machine everyday I would go with the new motor. If sometime in the future you would want to change to a treadle or hand crank you could. For now you would have the new motor and new wireing to get started. If you would want to change to a hand crank it would just be a one screw operation where the motor is attached. I know there are several people on here that prefer making it a treadle so this is just my opinion.