Yeah, it's not like anyone would be able to copy it since it's patented. The thing is the damn things weigh 65 pounds which means you can't take them on the subway with you, dragging them up steps isn't going to be a walk in the park... The potential uses of this thing don't astound me as much as I thought they might... The technology is fascinating, but I'm not sure I see people plopping down 3 grand for them...