[Crinus]

This doesn't answer the question though. The question was "why would you buy this over a pc with the same specs?" and you answered essentially with "if you do not already know this then you cannot know this".

How would one gain that knowledge in the first place? We aren't born with the knowledge of why one would buy this machine over another.

We gain that knowledge based on specifics of the two machines. So the question is simple: what specifically makes the new Mac Pro a more desirable purchase option for someone than a PC with similar specifications?