Well, I think there is nothing wrong with "classic" RPG mechanics. Simply put turn based "grind fests" work well, which is why they have survived so long. Not everyone enjoys them (like any genere), but then again no game is designed for everyone. People who knock them or feel they should be "stopped" because they aren't their thing annoy me a bit.
That said when I look at some of the games mentioned here I guess it shows my age that I don't think they are *THAT* old. For example Dragon Quest 8 is simply a last generation game.
To be fair, I'd probably say the oldest game I can still enjoy is "Rogue" and it's various iterations. I think Nethack can trace it's origins back like 20 years or so. That said I haven't played any "really old" games recently since I've mostly been focusing on stuff that has come out over the last couple of years.