On that note, why aren't there more touch screen mirrors? Of all of these, that ones makes a certain amount of sense (being a 'screen' we already look at at lea

On that note, why aren't there more touch screen mirrors? Of all of these, that ones makes a certain amount of sense (being a 'screen' we already look at at least a few times a day). I've only ever seen the DIY ones, never a proper product.