I wonder what the tracking weight is, 2lb? Even with as much plastic as possible it's got to be at least a couple of ounces. Perhaps they have some kind of counter weight attached. And how robust would the speed sensors and drive control be? Would the thing actually track record warps? I'll stop there, but still a zillion questions. Looks like a kid's toy for $600 retail, nearly half of that on Kickstarter, but still.