I recently discovered that Walmart has a system in place to allow customers to custom build either an i buy power or Cyberpower configuration through the website. I configured one of each in high specs, and each came out to be just over $1300.00 USD. I then compared the parts to the prices on New Egg, and discovered that the cost they charge to build, test and ship each unit is about $325.00, marginally more considering the generic components they use (in some cases). In my case I decided that I would rather re-use some parts from my old build, and use that $325.00 to upgrade my part selection to build it myself.
Still, in both cases, an i7 3770, an SSD, 16GB RAM, and a 670 2GB for under $1400.00, with no building required? Not too bad.
Of course, the tax is at least 8%, so that drives the cost all told above $1400.00, the shipping is "free". Systems start at $476.00.