I preordered one of these, and I somewhat regret it. The promo video is no assurance of quality in the end product, and it's not even going to ship until "early" 2014, which is a fair way away yet.
Why not wait until it's launched? Then you'll have reviews from dumb saps like me who can tell you whether it's worth it or not.
When this first hit HN, wasn't it set for a Fall 2013 release as well? I'm not surprised if it's been pushed back (maybe it hasn't) but I agree that waiting for it to land makes a lot more sense especially since Leap Motion is a very similar interaction and coming out sooner.
Why not wait until it's launched? Then you'll have reviews from dumb saps like me who can tell you whether it's worth it or not.