>The problem is that a line delivers crucial information: you can estimate roughly how much time it'll take before you're up next, The Apple employee checking

>The problem is that a line delivers crucial information: you can estimate roughly how much time it'll take before you're up next, The Apple employee checking in customers usually tells you what the estimated wait time is. Last year when I went in for the free iPhone 6 replacement battery, she said the wait was about 2 hours. Sure enough, the wait turned out to be 2 hours. >, you can see the constant progression, I agree you can't see this. Maybe Apple can mount a LCD display that constantly updates the customer wait times. Something like the LCDs at airport gates showing standby passengers their status. Or they can simply text you a status every 10 minutes on your iPhone. That may be preferable as customers can leave the Apple Store and do something else to kill time and return later.