Slot machines used to tower over casino floors in cabinets more than 40 inches...

https://wiki-planet.win/index.php/How_Do_Casinos_Plan_Accessibility_Routes_Around_Slot_Machines%3F

Slot machines used to tower over casino floors in cabinets more than 40 inches tall, heavy and immovable. Now, many games fit comfortably on a 6-inch phone screen, letting players spin reels anywhere