Shake Shack says it expects to have self-service ordering kiosks in ... Consumers tend to order more from the self-ordering machines. Kiosks also save on labor costs. As Shake Shack looks to ...

when you're tipping a machine, you can't be quite so sure," Wolfe said. Airports, coffee shops, restaurants and stadiums now have self-service kiosks. And merchants have programmed the devices ...

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