A perfect use-case is that you can bring the device for an after work or to a party. Everything is ready to go. Compare that to that somebody without computer s

A perfect use-case is that you can bring the device for an after work or to a party. Everything is ready to go. Compare that to that somebody without computer skills is going to connect a computer to a TV/projector, setting the right resolution, fiddling with multiple screen settings, set the right audio output device, attaching controllers, choosing and downloading an emulator, configuring the emulator, finding good roms for it.