I remember when I clung to Winamp 2.80 for years and then finally realized how awesome the media library was and updated to the newer version (I think they were on 5 something at that point). I then got Milkdrop and remember using it as a benchmark of sorts when I would upgrade my video card.
The first time I installed it was on my Cyrix 233 with 32MB of RAM. End of an era, but life goes on. I still have it installed, and haven't looked for any visualizers because Milkdrop is so perfect. Guess I'll give Foobar a try in a few years considering I never did enjoy the interface of iTunes, and my "recent" player is Amazon Cloud Player, which IMO sucks compared to Winamp, but I have made so many Amazon purchases it is my goto for purchased music.