And what about the hobbyist? I for one want a desktop, and certainly not a tablet.
I don't think there really are that many "hobbyist" out there that would be significant enough sales to keep desktop sales in the 1/3 of total market, which is the going rate that the business and gamers are currently purchasing desktops. Back in the 1980s and maybe 1990s, sure. Today, computer is simply a tool and while you do have OCers out there via for titles of who can out OC whom, it's not enough to maintain the current desktop sales rates. Even more so that most folk's phones are more powerful then what desktops were ten or so years ago. Now you may have a hardware hacker here and there that needs direct access to the desktop mobo for whatever reason, but it's not a significant number that would affect desktop sales. Even more so when you have such fast data links for external hardware to talk to a given computer, be it desktop or smartphone.