See now..... when you give your one example you make a point for that person only wanting one. Rather than the very general statement that Mac Pro's are unnecessary. I'm here to tell ya, there are a bunch of people who cannot substitute an iMac for a Mac Pro and I am one of them.
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Possible is you have no deadlines. Another word comes to mind also....painful.
EXACTLY! I don't know how many times I'm rendering right up to a deadline and final edit choices can be made or not made based on what I have time to do. This guy is just spouting stuff off the top of his head, and it's painfully obvious he has no real world experience with video editing or any other high end work. He's like some kind of government "Czar" who based on academia wants to tell those of us who work and live in the real world what we can and cannot have and what we "need."
In short, he's clueless.