Retail corporations are not going touch screen, due to the low skilled workers. They are going touch screen, because they screen an make whatever changes they need to from head office. They don’t need somebody in each store or area to make those changes.
I never had problems updating software from the head office. But then, perhaps that is because I was not using a touch screen to do it... -grin-
Seriously, remote updates and control is easy, try hamachi for instance. Of course, you do have a point in that you do not have to retrain the operators. You take away and icon and you put back an icon.
burger, no burger, easy!