The mac pro, in it's cheapest configuration, is a great deal if you need that much machine. It is the same price or cheaper than an "equivalent" machine.
the thing about it is, an equivalent machine is a powerhouse workstation, not a "regular" machine.
95% of the people using a Mac Pro don't need ECC RAM, except that the mac pro requires it. They don't need xeon cores. They probably don't need 8 cores right now, either. They don't need a workstation motherboard or 6 SATA hard drive capacity and a 1K-watt power supply.
The problem is that you can get (in most situations) 90% of what the mac pro has to offer in a PC that costs half as much or less. There is not, however, an equivalent Mac.
The imac costs too much and makes WAY too many compromises for the people who complain about the mac pro's cost vs. PCs. These people don't need a mac pro. They need a desktop machine that isn't built on a mobile platform (all non-xeon macs are mobile machines even if they aren't actually mobile).
the whole point is that nobody who needs a mac pro thinks they are overpriced. They've looked and they know. It's a good deal if you need 32gb of RAM space and processing power out the rear end.
It's a great deal, actually.
the problem is that the imac is NOT what most people want, and there is no Apple product that fills the void. If there were, Mac Pro sales would plummet, because most people buying mac pros don't need them. imac sales would plummet, too, because most people would rather buy a shuttle-sized desktop and connect a monitor to it.
so you're arguing with nobody. you're right, but nobody really cares that much.
I was merely proving that the "apple tax" myth is misleading (see my intro and conclusion
The point is not whether you need the power and server class of a Mac Pro or not, the point is that Apple is not overcharging for the components that the Mac Pro is comprised of (excluding ram and HDD's).