People are largely listing their favourite games rather than games with issues that should be addressed (like the legibility of text in Elite Dangerous) or that work well in a demo setting. E:D has a fairly hefty learning curve if people haven't already played it with a controller. I think Blarp is actually almost accidentally excellent for a demonstration: It adjusts to the player's pace, it has extremely simple rules, the grid walls show distortions, there is high contrast, the playing field surrounds the player making a wide field of view valuable. There's also no artificial locomotion, and it uses the analog triggers and motion controls effectively, in a way that would really benefit from a wireless system but doesn't immediately demand it. The one missing component is a high resolution element, and it doesn't make use of trackpads or joysticks.