Slot machines once took up entire aisles with cabinets over 40 inches tall and...

https://zanessmartcolumn.brightsora.com/posts/why-do-slot-machines-take-up-so-much-floor-space

Slot machines once took up entire aisles with cabinets over 40 inches tall and weighing hundreds of pounds. Now, they slide into your pocket on phone screens just 6 inches across