Darn you, internet. $25 for a sewing machine? THIS PRICE POINT IS COMPELLING. Why, I could... uh... make... pants. Or even better, my sock budget has just been blown out of the water.
Those two use cases are about one more practical, day to day use case than I can come up with for owning a 3D printer as an average person with no particular manufacturing skills, needs or ideas.
I look forward to the first 3D printed sewing machine, or fabric based 3D printer.