Once games looked better and played better on DOS machines it was all over. It didn't really matter that for some specific animation and motion graphics based work the AGA offered slight performance and capabilities not to be found on any Mac or PC. I didn't give a crap about DOOM but I do remember being particularly depressed when I first saw how much better Syndicate was on a garden variety VGA system.
Once DOOM came out, I wanted to play the game ALOT but had an Amiga. I didnt like DOS..what turned me was Windows 95. Ended up buying a PC for around $1k. Loved it. I had both a PC and my A3000 running side by side. PC downloading warez for my Amiga.. fun times.