Its not disappointed in the specific product, vitality sensor, but in Nintendo in general. If the device was accompanied by a well thought out game and shown in a demo mode, it would not be a disappointment.
OR if they would not have shown it at all and instead focused on games then the disappointment would exist either.
That, I believe, is the basis anyone picked any of the items on the poll. Not the specific item, but the company in the way it was presented or maybe should have spent time on something else. Basically, its more of a reflection on the company, not the product.







