Sushi is an art form, but one that is getting increasingly automated – the video below shows a fascinating amount of technology in magnets, sensors, POS at a sushi bar.
Wikipedia describes the growing phenomenon not just in Japan but coming to a location near you
Kaiten-zushi is a sushi restaurant where the plates with the sushi are placed on a rotating conveyor belt or moat that winds through the restaurant and moves past every table and counter seat. Customers may place special orders, but most simply pick their selections from a steady stream of fresh sushi moving along the conveyor belt. The final bill is based on the number and type of plates of the consumed sushi. Some restaurants use a fancier presentation such as miniature wooden "sushi boats" traveling small canals or miniature locomotive cars.