Actually I'm surprised by the praise. This kind of elevator isn't uncommon here, both in towers and hotels. And it makes so much sense.. In both scenarios you

Actually I'm surprised by the praise. This kind of elevator isn't uncommon here, both in towers and hotels. And it makes so much sense.. In both scenarios you probably want some kind of access restrictions, be it 'You work on floor 10 so that's where you can go" or "You can go to the cafeteria on the top or the floor of your room". This system, the way I know it, solves both this problem and allows the elevator software to plan ahead. Side note: Paternoster are quite cool. I prefer them to most 10-20 year old' real' elevators.