I hear you, Mumblefratz, but I tend to approach it from a different perspective -
If I am going to spend money to have someone else build my PC then I will pay slightly more to make sure that
1. The workmanship is decent
2. The support is there even after I make the purchase
If I were Thrawn and had scrimped and slaved to get my $1,000.00 I'd do the research and build my own rig, because when all the other Boutique shops are charging a 15%-20% premium it seems ultimately sketchy to me that iBuyPower and CyberPower (owned by cousins) sell at a loss. They are cutting corners, and I'd rather not find out how.
With only a bit more cash in hand I'll pay the premium, if I am having someone like Maingear or Puget build it, because they will cable far better than I ever could, sustainably overclock, and be there for me when it breaks.
The frustration involved in being shipped broken components is actually preferable, for me, to the helplessness of being shipped a broken PC. I like to tinker, otherwise I'd just stick with the 360...