Yes, I do know how long the 30 inch has been available. What you are forgetting is just because they might make what seems like a large profit on a per model basis to manufacture, there are other costs such as maintaining inventory and demand levels to keep your manufacturing costs low. Still, my point is other options for a 30 inch monitor are available for your Mac. And like many have pointed out, glossy displays are not great for most pros.
Shake - yes no longer really updated and not even sure if it is being sold. Industry standard though - not really. Was getting there and being used but was shuttered before it had a chance. Great software (IMHO) but far from being a true "pro" app which was widely used and then abandoned. Sad to see it go, yes. Indication of Apple leaving pro users behind, I would disagree. I see the loss of Shake as Apple choosing to leave a pro app like that to other software creators who can make equally as good if not better products.
iSight - not sure what your * means but I would not consider the iSight a "pro" device. Plus, all macs now have a built in iSight so I don't see your point here.
X-serve and MacPro - I LOVE the X-serve and REALLY love the X-RAID not to mention my Mac Pros (I deal with those in the next graph). The X-serve and X-RAID were Apple's attempt to enter the enterprise market and I think were great products. If you ask network admins though and true server IT folks, the X-serve and X-RAID were seen as "also ran" type products and NOT up to the enterprise level. I think they were, and still are, great products. I think Apple has chosen to target a different market than compete in the enterprise server level market. Do I like that choice? No. Does the X-serve still work great and do I plan to buy a new one next year to replace my vintage 2004 model - yes. Does it mean Apple has abandoned a pro market? No, and I have used their server software since 1998. Even then it was not considered truly professional.
Mac Pros and even the iMacs get infrequent updates. However, if you look at the history of Apple, they do not update their computer hardware that frequently. This is not like the PC market where you can buy a PC and six months later your computer is outdated. Apple has NEVER operated on this line of hardware upgrades. If you look at their history this is NOTHING new. Starting from 1990 through 2011, Apple has been pretty consistent about how often they update their hardware. If anything, the move to Intel has INCREASED the frequency of updates compared to the PPC days. If you remember those days it was almost embarrassing how long it would take to update a machine. It was so infrequent I planned my buying cycles (I manage labs) on a 18-24 month cycle.
I'm not saying Apple is perfect just some of the claims by people are being blown way out of proportion or at least perspective.