I agree with peckish, and want to further comment....there are some great bobbin winders out there for $20/30
http://www.joann.com/wrights-sidewin...te/xprd315882/
i have a fancier one that I need for winding my Long Arm bobbins cause they do not wind bobbins on the machine.
Now I will say, I use my Embroidery/Sewing combo machine to wind bobbins, it does it with a simple click rather than being run via the foot pedal. I find that the bobbins are wound more consistently and work better than the foot pedal ones. But that is me
And whomever told you that, they may not know there are other options.
Btw....the $100 bobbin winders that I have seen are the long arm ones that have speed control to ensure that the bobbins have perfect tension......cause with LA's it is
ALL about the tension!