I'm a DOOM fan, I have a Dreamcast (though not hooked up) AND it's modded.. and.. I'm still not really interested enough to actually download it. So, yes, this is ultra niche ;-)

That said, it sounds like a great cultural artifact.

How can the "Parent" be moded has Interesting, and not flame bait or troll ? Today I went to my little cousin birthday party and in the living room I found his father talking to his friends about the cool PS3 he had bought his son and how cool it was in the big LCD, describing all its nifty features specially those he never used, like internet and movies (blueray movies are still really expensive here) and everything while the kids were all in the basement playing in the old Dreamcast I had offered my cousin... so ya I think what counts is if its fun not how old the game / console is.

Doom 3 was a great 'meh' because it didn't "appeal is to twitch-kids who enjoy playing hyper-modded versions for mowing down hundreds of sprites on the screen at a time without the distraction of a real z-axis the likes you'd get in a Serious Sam game."

Go back and play it. It's fun, it's fast, and having 30 monsters on screen at once, combined with the wonderful lack of cut-screens, make it a refreshing change from modern shooters.