I have at least 3 usually out where i can get to 'em easy. I bet I go sping the crank of one at least 3-4 times a day. It's kind of a meditation. I don't even mind winding bobbins, because somewhere I read that winding them slow as possible is best, and nothings slower than by hand. But then again, I don't see as much as other folks. I also like getting a feel for how easily I can get them to turn and how quietly.