I expect ski boots to be the first consumer breakthrough 3d printed product. Personalized fit matters immensely, so much so that it is common to pay someone to

I expect ski boots to be the first consumer breakthrough 3d printed product. Personalized fit matters immensely, so much so that it is common to pay someone to grind and stretch an existing shell and/or to use exotic heat moldable or vacuum fit liners. Further they are fairly expensive and one of the main cost of producing a new model is the cost of producing molds in each shell size. The market is also large enough to justify significant investment but also very receptive too new boutique products. (Any one with a 3d printer feel free to use this business idea so I can buy a pair and stop my feet from hurting.)