Because you want it to use for 3D design, music/film production etc.
I wish this weren't true! A lot of people have post the question "which 'killer app' would make Linux desktop adoption take off?" I think it should be Adobe CS6.
If this becomes a relatively cheap reality in the next 30 years
How rich are you? This sub weighs about 8,000lb, so it might just have room for -A- passenger. A reeaeeaaally rich passenger.
Now I suppose if you had some nice admin tool GUI that allows you to point and click to select a set of actions to perform on each machine or group of machines
Novell Zenworks does exactly that.
Anything free is worth what you pay for it.