Melcar said:
PS:T had good, involving story. That's it really.
It had a ridiculous level of interactivity as well - how many seemingly-random NPCs can you talk to and end up learning new thieving skills, triggering memories, having your allies interject and shed light on the npc, themselves, or some other event, or how many other games allowed the level of inspection and investigation of the game world's surroundings?
That's not just storyline, that's actual character based interaction with the setting, areas, other characters, and even the meta-plot itself. You know, the main thing that RPGs are about.