Myst, it's a deep brain thinking puzzle solving game, its impossible to beat without having a notebook next to you and using half of it to keep track of stuff.
I really hope they go out on a limb here and actually make some games for online play. It would be great specially since N64 was made for party people.
I like that Sony did it, but sadden they haven't given a full list. Good as it is, I doubt I will get it unless they announced some more RPGs that I can't get my hands on.
My typical story is that I keep getting into these games late and end up in some over leveled lobby where I spend much of my time getting killed or simply owned.