When I think about depth, I think about things like: finding people to talk to. Side quests. Fleshing out cities and industries. I think about a deep world -- something SNES games almost never gave.
I think about exploration and emergant gameplay, something SNES games almost never gave.
I suppose if your definition of depth is purely story based and can be fulfilled through a linear, one-story-fits-all game, then those SNES games can be deep.
I think about exploration and emergant gameplay, something SNES games almost never gave.
I suppose if your definition of depth is purely story based and can be fulfilled through a linear, one-story-fits-all game, then those SNES games can be deep.