[LukeShu]

Read closer. He "just" recently paid that. The HP 8400 is what, a 2007 machine? The prices when the parts were new is irrelevant.

[Cookingboy]

I suspected as much, but then it's silly to bring it into a cost/performance comparison against a brand new top of the line 2013 desktop. Yes they are upgradable, but by the time you upgrade them to modern spec it will cost a lot more than $320.