You may, but its not correct. I bought a Dell XPS 400 through a bunch of coupons for 500 bucks last month - P4 2.8D, 1 GB Ram, 160GB drive, DVD-RW and CD-RW, X300 card (yes, I know its a crap card). If you put rhe components put together yourself, along with the cost of Windows, come out to about the same (or more likely) spending a little more. For me, the time commitment wasn;t worth it. If you're building a really nice rig, yeah you can do better. For a basic computer, they're fine because they can acquire the components far more cheaply than you can.