All instances of Mac Pros seem grossly overpriced at the moment. A PC/linux server at 2500 or 3300 or anything in between/higher is nearly always $1000 (Or more) cheaper. Why is this?
The dual CPU Mac Pros are
not overpriced for what they are.
Dual-socket Nehalem workstations from Dell, HP, and Lenovo are priced
exactly the same as the Mac Pro.
And these machines are not designed as well as the MP (I am talking about cooling, ease of upgrade, etc). MP also comes with OS X.
The single-CPU Mac Pro
is a bad value compared to what everyone else is selling, but it still might make sense under certain circumstances.
Why is a 1TB HDD 300 on Apples site? Why god why?
All manufacturers overprice factory-installed generic parts. Not only Apple is guilty of that. Just try to upgrade one of the Dell Precisions.
However, installing an extra drive into a Mac Pro is trivial, and arguably simpler than in any of the competing machines. So this point is rather moot.
At the moment I would condemn any who buy a MP due to the current pricing. For less money you could get a much faster computer!
You cannot get a faster and cheaper dual Nehalem machine from any major manufacturer. You could conceivably build your own and save a few bucks, but most, if not all DIY computer cases
suck, and accumulate dust over time. Also, if you want to run OS X, you will have to go the Hackintosh route. Whether all of this aggravation is worth $300-$500 you will save this way is debatable. Definitely not worth it for me.
On a side note the video cards in the MP are the biggest joke I have ever seen. A workstation means WORK STATION! Not ****** graphics for gaming in windows.
As has been noted above, workstation cards use mostly or completely the same chips as the mainstream cards. The difference comes with drivers. The "workstation" drivers usually unlock a few rarely used features, and they are certified for major 3D and CAD software, such as Maya and AutoCAD.
FYI, most, if not all Mac Pros are certified for Maya under OS X. That's all that matters to people who actually use these machines in a production environment.