Want proof that user experiences matter? Look no further than the HTC Vive and Omnipudding's particle generator, GPU Cubes VR, which lets you interact with thousands of colorful, cubic particles in a black void. If this was a simulator for your computer only, controlled with a mouse or keyboard, you'd be bored in seconds—but it's just simple, instant fun on the Vive.
Virtual reality and horror were meant for each other. You'll get all the positive aspects of experiencing a terrifying situation such as excitement and an adrenaline rush, without any of the real-life consequences, like being ripped to shreds by a herd of flesh-eating monsters.