You know, I often get thinking the same thing of such cards. Oddly enough though I page through my binders now and again and try to let go of my preconcieved ideas. What I find is that some of the old and fogotten cards often fit well into and really mess up the current meta.
One of the best examples I can give is a good old 2000 def. monster. Weather it be
Giant Soldier of Stone,
The Forgiving Maiden,
Stone Statue of the Aztecs, or
Roulette Barrel....people just aren't used to hitting that wall with their 1400-1900 atk monsters and have only one or two tribute monsters that can overcome it. Granted, there is
Lightning Vortex and
Smashing Ground that can deal with these but I don't see
Smashing Grounds as much as I used to and
Lightning Vortex is only one per deck....I'm getting off subject ....sorry.
Getting back to it, don't automatically discount some of the older cards. They can and often are great solutions to problematic areas that arrise from the latest and greatest cards or deck themes.