I agree, marfig.
Given the recent events with Final Cut Pro turning into more of a consumer app and it being rumored that the same thing is destined to happen to Logic Studio, it's clear that Apple's interest in the professional is waning. Back when it didn't have the iPhone, things were different, but with those things selling like hotcakes, any decent return from the Mac Pro line is going to feel like a waste of time. And if Apple isn't going to put real effort into it despite that, then I can't see many professionals working on Apple sticking around.
Ars posted an article not long ago about this also, and they interviewed such professionals. Many of them said that the other Mac choices just don't fit their needs, and it's obvious why. The Mac mini is out automatically... it's weak. The iMac is a lot better, but it still isn't designed for anything that professionals need to do, especially video editing. The high-end MacBook Pros would be on par with the high-end iMacs performance-wise, so any way you look at it, these users would be left out in the cold.
I find that a bit upsetting, because it used to be that most content-creators chose a Mac for various reasons. I am not sure that's the case now, given the rich software selection on Windows for this target market, but still - if there's no Mac Pro, all people are left with is Windows. Linux isn't even in the running (for video). Current Mac Pro users are not going to be able to keep using their rigs forever so the only obvious choice is moving to Windows.
That said, I know the Mac Pro market is small, and it's not like everyone and their dog owns one, but in this particular niche, it's been an important product. But again, it's clear that Apple doesn't care much about niche anymore... not when it sold 100 iPhones in the time it took me to write this.
