I will agree with you - Dean provided some really cool music in the house like the Dinner Dates and all of them singing.
However, sometimes instruments and games and books can make people quite unsociable. I know they need stuff to keep them busy inside the house but some of them sit there for hours amusing themselves but their not really amusing the public.
If you turn over and watch the live feed and watch someone reading a book, its not that exciting.
Although I think instruments should be brought in cos it can get a party started and i think everyone needs a bit of music in their lives!