There is a convenience store near me that implemented these about a year or two ago (not a walgreens). They suck, even when they are "working" - it often takes several seconds for the screen to "wake up" and realize you're there, sometimes the items or prices are wrong, and usually ends up with me getting frustrated and opening every single door. So, I just stopped going altogether to that place. At first I was enraged, like "who is this even helping?" until I realized oh, this isn't for <i>my</i> benefit.<p>At some point this industry needs to come to terms with the fact that hostility towards users to generate revenue is not an infinite resource. Any technology that does not make things better for the end user should be immediately suspicious. So much produced nowadays is just overly fancy crap that isn't providing much or any additional utility to the alternatives, or it falls apart completely after a year or two or when the company disappears and stops supporting it.