I truly believe that A/UX doesn't get the credit it deserves. Was it ambitious? Sure. Did it it fully succeed in the goals it set for itself? Not really. But it was really a very nice integration of the Finder and UNIX. After all these years, I still look back on it with fondness. It certainly was a cornerstone platform for me.
Interesting that the article calls out the price point as one of the reasons it didn't succeed. Although a lot of that was the OS only having drivers for expensive hardware and being unusable on the lower end Macs. That said, high price killed off most of the legacy Unix vendors/products. The world was changing around them and they weren't ready or able to give up the profit margins they had enjoyed for so long. Pers…
Of course a Unix workstation was twice as fast as a PC and cost twice as much, but it becomes pointless when most of the time it’s bored to death waiting for me to move the mouse.