I have debated it for some time, and discused it with others....many don't visit them. Fact is if you get them right away that 60 credits in I would say 2 minutes. It can take as long as 10 minutes, and if you get caught up with doing something it is easy to miss them. In 10 minutes many of us could haul in up to 1000 credits in games. So the time value isn't there. However, I have hever been one to leave money on the table. Often it is the only free moment I have in VMK so I continue to visit with my main character, but if I have any extra players in I pass. It takes only 2 minutes to get the first 5 and another minute to do the music room. If they made the ghosts a more permanant part of the rooms or increased their frequecy it would change somewhat the feelings on credits here, but you will still have to walk through the rooms.