There are people for whom "the past" is "the present", in that they didn't just quit because the buzzer indicating that it was THE FUTURE! went off. And I don't mean AD&Ders, either. Folks who play PATHFINDER aren't permanently stuck in a "Jeffety is Five Today" 2003 causality loop just because they didn't care to "upgrade". Likewise, for myself? If I went out, bought a Sears BMX style bike, rode across town to my elementary school, called my friends and asked them to come to the library (let's ignore the "getting arrested for being creepy" part that would come from a bunch of grown men hanging around in an elementary school) and play D&D and we all sat around talking excitedly about the new DUNGEONS & DRAGONS cartoon and would it be as cool as HE-MAN while we played and...well, acted exactly like children...that would be living in the past.
But nobody wants to do that.
"I found a ruleset, I'm comfortable with it, I'm going to use it, and since the company who makes it intimated they're going to continue to support it then I'm happy" is not a cry for help from deep within someone's psyche.
We haven't been to the battlefields of France and are now damaged to the juncture that home doesn't suit us. It's just some D&D rules that we prefer over others. And as to assigning any ulterior motives as to why I prefer AD&D and the PATHFINDER folks prefer d20, and so on? There's no profit in that. Nobody here's desperately grasping for the glory days.