The traditional PC is mostly gone, and indications are that the laptop is on the way out as a platform for most people... As I've noted before, mobile devices have dramatically altered the landscape of personal computing:
Whether it’s casual gaming, media consumption or communication mobile devices offer a far superior experience to the traditional PC. The experience is devoid of multiple confusing options, startup is instantaneous and what you want to do is front and center. For a comparison, pop open the start menu in Windows and wonder at all the things shown there that you’ll likely never need or use. Or the desktop that is scattered with files and applications that could also be hiding on the task bar, in Explorer, on the Start menu or in the notification area.
For most people, in most situations, a smartphone or a tablet PC is all they will ever need.