The thing that really sold me on the utility of the nipple was trying to use a laptop while riding in a car on a rough road. Up till then I mostly ignored it,

The thing that really sold me on the utility of the nipple was trying to use a laptop while riding in a car on a rough road. Up till then I mostly ignored it, mainly because I was used to trackpads. but that stupid red wart on my keyboard turned the experience from massively frustrating to actually usable. So a niche use case to be sure. but it is definitely a feature I look for now. See also: trying to use a touch screen in a moving vehicle.