No, the Mac Pro is a very very good example, it's you, you do not see the point. The point is Apple is not interested in making a gaming computer but yet they have a machine that is more than capable of playing AAA games but it is priced so high the average gamer would not be able to afford it, hence the point of Apple putting barriers in place to prevent people thinking their machines can be a dedicated gaming machine when they are not and that barrier tends to be price.
There is something a bit strange here: "..to prevent people thinking their machines can be a dedicated gaming machine when they are not..".
Be that as it may, you're right, Macs don't make sense as
dedicated gaming machines from either a price or a catalogue perspective. Having gaming as a supplementary function seems quite reasonable, provided the titles are available.
Also, people should not be focusing their complaints at Apple, they should be focusing their complaints on Apple customers because for it is them that will drive the demand for a Mac gaming machine and the demand is just not there.
Well, that is the thing that is likely to be shifting a bit. How much? Nobody knows.
But as long as consumers with an interest in gaming could just fire up Windows and have access to the entire library there, well, what demand would you expect?
* That is no longer possible.
* The new consumer Macs sell well.
* The new consumer Macs actually are quite decent performance wise.
So the landscape will change. And while we don't know just how, we pretty much DO know in which direction, because all changed factors point in the direction of an increase in native gaming. It can still be from "modest" to "still pretty modest" though. That remains to be seen.
And you have a good point in that Mac users need to actually buy stuff in order to drive a change. If they preferentially support other platforms, well, "still pretty modest" would probably be the outcome.