It was the only 16-bit computer with more than simplistic memory-mapped video hardware, with sprites reminiscent of the gaming-oriented 6502 processor color home computers (Atari 2600 and upwards and Commodore 64) but scaled upwards and separate "blitting" processing that could do the equivalent of sprites on bitmaps but with hardware acceleration. It had actual serious multitasking/processing. Compared to the state of technology, it was a very solid move forward from home computers to larger processing power and matching operating systems. "Personal computers", in contrast, highlighted the "business" angle and you'd see them advertised more likely with snapshots of spreadsheets than games.
It's possible that the high pricing of color monitors with reasonable resolution confined affordable reasonably ergonomic "computing" to monochrome displays, leaving color personal computers stuck with the display parameters of color TV sets which they strove to be compatible with.
The Macintosh with its built-in screen kept with monochrome (and CPU-manipulated bitmaps) for a long time, too.
So the Amiga was pretty much square where the technological advances would position the progress of home computers and in a space, for whatever reason, without serious contenders. But for whatever reason, also without serious perspectives. It took some time before acceleration became a thing on PCs, and even then, its "sprite" support never grew beyond a hardware cursor. Instead blitting and later triangle shading and other stuff you'd expect GL to deliver became a thing and eventually got good enough to kill off Silicone Graphics Workstations, at one time the epitome of heavy-duty graphics processing (rather than game-based graphics which had a different focus).