When (some) people claim the Mac Pro is overpriced, what they're really reacting to is that there isn't an upgradable tower Mac available at a price point they can afford. There are people who don't need Xeon processors and multi-terabyte SSDs who still want the option to swap and upgrade components but can't afford to start at higher than $2k-$3k.

The Mac Pro isn't overpriced for what it is, but its overpriced for what many people want.