I don't get the point of this video.
It's kinda like if Epyx stacked his Blue Lightning project 'MAME Arcade' on top of his Aliens cab, took it off and replaced it with his Final Fantasy 3-piece as a comparison and videoed himself in the process.
The devices on this video are different sizes, cost different amounts and are aimed at different markets to perform different tasks. What's the point of stacking them on top of each other?