Besides that you can get equivalent machines at a lower price, as some comments here have shown, the other big problem with the Mac Pro is, that there is no other true desktop machine available from Apple, e.g. accessible components, supporting a graphics card. In the past, the Mac Pro would work as a slightly oversized deskop machine. But the new Mac Pro is priced completely out of that region, basically twice of what its predecessor cost. And I remember the times, when the entry level G5 PowerMac was slightly cheaper as the G5 iMac, the latter of course having a 20 inch lcd.