I don't think it's dying, what I think has been happening and will continue to happen is that unless you're an enthusiast the PC presence is gradually being shrunk and tidied away in a corner and forgotten by many. For many having a 'home PC' would be a relic, similar to how they don't have anything like a dedicated stereo system for playing audio which might have taken up a significant amount of space (possibly more than a PC) years ago.