Half my business is in support, all this new crap will need supporting too. There is a big difference between support and repairs

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I agree. My Father's business was electronic repairs, and that business is disappearing, certainly very few businesses repairs TVs or monitors anymore. When I started in PC repairs 10 years ago, the business I worked for were just starting to move away from monitor repairs.
PC's are slightly different in that they are modular, comprised of components which can be upgraded, so there is still a market for techs to manage upgrades and system setup.
This is what I see eventually happening with 'computers'.
Computer hardware will become very very powerful and cheap.
Cheap, huge internet pipes with on demand HD 3D movie streaming, with parallel high quality video voice communications and 1 second 20 gb data transfer speed.
Communications will converge into computers; Skype services, telecommunications, voice and video etc all transported over TCP/IP.
Entertainment will converge into computers; television sets will simply be huge HD screens connected to your computer box with a permanently connect fat internet pipe.
Movies will downloaded in seconds, in 1920×1080 HD quality. Television channels will become website portals, with a world wide audience, no longer restricted to local broadcasting infrastructure.
Operating systems will become adaptable, multitasking and also able to perform specialized tasks very well.
By specialized I mean instead of buying an XBOX or Playstation, your PC will be able to run virtual instances of an XBOX or Playstation game machine piped out to another monitor of your choice anywhere in the home.
Microsoft and Sony will build and sell their game machines as virtual machines, downloaded to your PC in seconds. No more hardware for these companies to support, all software.
The same goes for games, all downloadable over the ubiquitous and always on internet.
The money won't be in the hardware, it will be in having the knowledge to know how to manage, configure, and setup these fantastic services.
Who will support all these systems? We will, the tech specialists.