I volunteer at Austin Creative Reuse, which is a reclamation and resale shop for art and craft supplies. I primarily work to test and repair electronics so they can be kept out of landfill and resold at a low price. We process a ton of older plotter/cutter machines like Cameos and Cricuts. (I put six on the floor today, ranging from $4-$30.) We see quite a few sewing machines come in, too.
Look to see if there's a creative reuse center where you live—I'm a big supporter!