The formula is simple
All you have to do to sell a PC Is:
Make it well, nobody wants a noisy, flimsy piece of crap.
Make it attractive. Nobody wants it if it looks like crap, and that includes gaudy, blinged out cases as well as dull, "we're all clones" boxes.
Make it accessible. If I can't find it, I can't buy it, now, can I?
This goes for both online and traditional outlets. If I have to wander a maze of webpages on your site just find it, fuck it, I'll go elsewhere, but if your closest retail outlit is only in select major metropolis' it won't be there.
Make it affordable. No, I don't mean cheap, I mean make it at least appear to be value for the money spent. I'll pay a reasonable premium for a quality machine.
Now see? That's not so hard!
Steve Jobs figured it out... Hell! Even I can figure it out, why can't you? What? Bottom line? Haven't you noticed yet that if you're only aiming for the bottom, you'll get there?
OK, I'm done ranting now... for now.