I still love all my old games, and play things like Fallout, Baldur's Gate, Sim City 2000, Shadowcaster, Diablo 2, TES:Arena+Daggerfall, Ultima, Kings Quest, Space Quest, Monkey Island, Duke Nukem 3D, Cannon Fodder, Simon the Sorceror, Jagged Alliance 2 and many more.
I'm trying to collect up all the old ones that I sold or lost in years gone by, and on top of that, trying to play all those games which passed me by the first time around.
Thankfully there are places like Good Old Games [http://www.gog.com/] where I can get my fix, and I'd recommend them to anyone.