I'll never understand all of this stuff. I do consider myself a pretty big geek, but for as long as I've been building computers for myself...
...my goal was always to get them smaller and quieter.....not bigger and more flamboyant, with more fans.
If you ask me, a PC should be about half the size of a laptop, with 1 plug for power and one for display. Everything else (including optical drives) should be wireless and seperate.