From 1988 you would watch b/w or 4 colours on PC made for offices being really expensive, and from y2k you could play DivX videos and TV at home. And from 2k-2k1, even under Unix at home too (something unthinkable by 1988) with some nice GNU/Linux distro :D.
The technology change from 1988 to 1998 was really huge, much more compared to what you could get since 2010 until today.
Although the Amiga was quite a neat piece of kit when it first came out in 1985, I disagree with your comment unfortunately. The custom chipset sorta "froze" the Amiga design to a particular level and it was very hard to make meaningful upgrades, unlike PCs, where you could slap a new CPU into the CPU socket, or a new video accelerator, sound card, etc, into the ISA or PCI busses.
Yes I realize there were accelerator cards for Amigas later on, like the BlizzardPPC, but they weren't an officially supported option by Commodore (most accelerators came out after Commodore was pronounced dead in 1994) and were more like kludges.
I was a Amiga fan until the mid 90's, and you're spot on. The Amiga was too difficult to iterate on. Chip set upgrades like AGA were far too little, too late. (And forget about ECS, which barely added anything a normal user would care about.) By the time AGA was out, 386 systems with SVGA, Soundblaster, etc were cheap and common.
As a collector, this is why I prefer Atari ST family systems over Amigas. Because they are simpler from the jump, they are easier to work on and less finnicky - floppies being a prime example of this... as Commodore liked using aggressive GCR encoding instead of IBM PC standards for formatting diskettes. For everything else, PC based hardware is just more familiar and flexible for me, since that's what I grew up with.
The Amiga was definitely the more exotic platform! I learned a ton from Amiga OS though. It was my first exposure to a "real" operating system with libraries, multitasking, IPC, etc. Once I got a Linux box though, I never looked back.
The technology change from 1988 to 1998 was really huge, much more compared to what you could get since 2010 until today.