I have bought the DH expansion and now the games are not so easy to win- off late we have been doing a lot better (60 to 40). Do you guys recommend any other expansion to enhance the experience-either in terms of difficulty or enjoyment or introducing new game mechanics? I haven't read any of the Lovecraft stories, so I can't really appreciate/understand a lot of the theme, but I enjoy the game nevertheless. I am planning to buy at most 1 more expansion - would adding any one in particular make the AH experience complete?
I would recommend either King In Yellow or Innsmouth. Both add some good mechanics, for instance KIY makes the Terror Track more of a concern. If budget is an issue I would suggest going with the cheaper small box expansion - KIY.