There is a SideWinder Deluxe $99 range at Jo ann's. I did purchase that model, the smaller $25 w/coupon version did not work with my Pfaff 2044, I like my Bobbin Winder, I prefer just to sit and make a plethora of bobbins at the beginning of a project. The deluxe will work with the bobbins from my Singer 15-91 too.
i had heard that using the bobbin winder on the machine did put wear and tear on the motor, can't tell you wear i heard it...it did not make a whole lot of sense to me, but in an effort to savior my machine i do use the Winder.
I think my machine may have the ability to fill a bobbin from the spool while sewing or something to that effect... need to study up on that option.