May be best to run CM 100 times this week till you are totally sick and ready to quit this game. I have feeling they will do a super nasty hot fix that will make sure your run is a minimum of 90 mnts long, almost three times the normal run and bosses now will drop 5 tomes and the rest you have to earn from killing trash mobs... Get it done, done and done, and take a break till patch 2.2. or 2.5 lol when there are more than 1 dungeons to run for endgame.