Earlier quoted context omitted.
Since when is $200 for design figured into the cost equation? And who pays $100 for a wireless keyboard mouse combo? $20 http://www.newegg.com/Product/Product.aspx?Item=N82E16823164... you are at least $280 off on price.
Looks and form factor matter to me and are something I'm happy to pay for. I'm not saying they should matter you. If you'd rather save $300 and buy a computer in a standard plastic box, with trash peripherals that are only rated 1 egg, then you're welcome to it. The number of people who spend $300 on just a case + power supply from newegg when doing a custom pc build is not small.
But even when I threw together my last monster home machine from newegg I don't think I spent more than $150 on case and power, and I even went hog wild with lights and all kinds of fans and other sexy things.
Just because Apple felt that they needed to spent who knows how much R&D on a new plastic unibody mold that nobody is impressed with much, in order to house perfectly stock budget hardware doesn't mean that I think I should pay for that.