Let's see... games from two decades versus games from 5 years...
Uhm... Strangely enough there was more good titles created over the course of 20 years, then what has been created in 5...
Age doesn't matter. Games are all about fun, and those games were made then and are still made now. If a game is good you should try it. Buy the ones created today, and download the old abandoned ones... that's what I say.
I still buy old games to this day. Just yesterday I bought the entire Realms of Arkania triology for only a couple of bucks

k:
In case someone wondered. I didn't vote.