It probably is cheaper, being a knockoff. My point was more that the Onewheel device looks like something I'd slap together in my workshop out of spare metal br

It probably is cheaper, being a knockoff. My point was more that the Onewheel device looks like something I'd slap together in my workshop out of spare metal brackets and plywood, not something I'd bring to mass market. All that said, I wouldn't ride either one. At my age bones don't heal as fast as they used to.