This article from Gizmodo brings up an interesting point. And part of me agrees. I think the usability, meaning the user experience, of a product is crucial to its success. A good product is one that is not only easy to use, but also comfortable. It makes sense that a smaller screen is easier to use in a one-handed scenario. But some people just prefer a big screen and are willing to sacrifice some single-hand operation in order to watch larger cat videos on YouTube.