Slot machines used to be massive, often towering over 50 feet when you include...

https://rowansnewthoughts.quantlynix.com/posts/what-did-mechanical-slot-machines-use-instead-of-circuit-boards

Slot machines used to be massive, often towering over 50 feet when you include signage and lighting. Today, you can play them comfortably on a 6-inch phone screen