Or like in Planescape. You could become a member of a guild but in doing some of the opposing guilds became hostile towards you and you can't do their quests or get their items.
Live is full of choices <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" />
as well as consequences; pleasant & dire & both combined. choice that opens doors & closes more is what i want. it's more RPG-ish that way, i feel.