> Pro's need a machine that can evolve over time. Is this really true though for Apple's target market? I'm guessing that if I'm an artist for Pixar and I need

> Pro's need a machine that can evolve over time. Is this really true though for Apple's target market? I'm guessing that if I'm an artist for Pixar and I need a new "professional" machine, the company is 9 times out of 10 going to buy me a new computer rather than buying me a video card upgrade. I'd imagine most large corporations would do something like that since it's more scalable than upgrading individual parts piecemeal. Buying one "pro" machine and upgrading it over a number of years seems like more of what I'd call an "enthusiast" strategy. I think it's reasonable that Apple is betting that Mac "enthusiasts" would be willing to upgrade their machine wholesale after a number of years (maybe recouping value by reselling their old machine) rather than extensively researching new video cards and buying one off Newegg. Maybe they're wrong and people aren't willing to do that, but it's their prerogative to place that bet.