Yeah that is not true, they had an entire special dealer network of Amiga Unix dealers and special sales staff in this country. It was about half the cost of a competing Sun system. The thing is back then people bought Unix boxes very different today (linux was just a glimmer in someone's eye. The HP offer you mention doesn't really characterize Commodore's relationship with HP..
The were other issues like how a 68030 or 68040 would compete head-on with a SparcStation for CPU power. A major university in my area was considering purchase of Amiga Unix boxes and it almost happened. However since Commodore sold everything at bargain basement prices they couldn't afford to LOWER the price and when the other workstation companies were presented with their customers going to a "commodore" option they lowered their price or "donated" machines to schools to keep the marketshare.
So Commodore already swimming in red-ink had problems competing. The schools still went with Amigas but they wanted the ones with genlocks and multimedia production capability. Not the ones with Unix and the A2410 graphics cards which gave Amiga better resolution but removed the multimedia and video capabilities.. And kept their more high-end sparcs and used the "Commodore option" as leverage to get machines with more perceived CPU power..
Windows NT 3.51 was the windows NT multi-tasking kernal running ontop a single tasking windows 3.1 desktop. It was powerful thanks to the ex-digital folks that made the underlying technology but it wasn't till 96-97 that it started gaining steam. Way after Commodore's started demise..
So don't BLAME Commodore for this, they tried hard.. Also the amazing thing about most people chiming in with postings is they are talking about products that came 4-5 years if not 6 or 7 later than the Amiga (ECS, AGA)..
It's been years guys, but get your timelines right.. The Sega Genesis would have been at this same time line (if not a little after). Also everything was planar even most 8bit color vga cards till way after 1996. I know I used to work on windows software for them and at the time even into the first release of Windows 95 some didn't have a BitBlt function..
Oh and for the record Andy Warhol used Graphicraft not Deluxe Paint (it didn't exist at the time). Graphicraft became an Aegis product called images if I remember correctly.