I miss that time mattered. Things spawned at night, during certain moon phase and weather. Some shops was only open certain times or days.

I also miss that debuffs where awesome, dispels where needed.

I miss a lot more then that, but to tired atm to type them all out.

Party lving, chain number 320.
I only got to around 180. But I would have pretty much liked it if they had skipped that expansion, because it was during that they ruined ranged attack.