During my time at ecoATM | Gazelle, the technology of the kiosks was always being upgraded. When I first started the machines were only capable of playing back simple/lightweight Flash movies. A few months into my time there and the machines were upgraded to be able to play back full-motion video.
The result was a period of experimentation where I would create videos, pass them off to engineering to deploy, and then work with Ops to track any increase in traffic/trade-ins. When the machines were further upgraded, the marketing and engineering departments were able to successfully deploy campaigns to specific areas, crafting messages specific to areas/demographics.