I myself couldn't afford (and didn't need) a Mac Pro several years ago. However, I could really use one now. I'd buy one of the existing ones, but man... I really feel like a sucker paying so much for a system that's clearly lacking in a lot of spots, to know that I'll be upgrading in a year. And the current pricing feels absurd (although normally I feel Apple pricing is fine, right now the Mac Pro isn't a great deal).

It could be argued that a real "pro" would make their money on it either way, but I myself am sitting more in the "prosumer" market. I make videos for Youtube, but I don't really make much money on them... but I really enjoy doing it. The workflow on my Macbook Pro right now with 1080p is just painful.