A small tidbit from the MGM Resorts International earnings call earlier this week was Jim Murren mentioning that rooms at Bellagio and MGM Grand will be renovated in 2011.
Both hotels are among the nicest in Vegas, but the majority of their rooms have gone a while without a major update. Many Bellagio rooms feature a huge armoire with a tube style low-def TV. I know most people don't go to Las Vegas to stay in their rooms and watch TV but if you're paying $200 a night you should at least get a flat screen.