The experts don't like the newer ones because they are a Dell product. Dell is like third in line for worst computers made (behind HP and emachines). Before Dell took over Alienware, they were a better quality machine, like the Area 51 that we had (I still have it.using it to post this right now).
If I had a choice back in the day, I would have gone with the same one that we have, but with a bigger HDD, a DVD-RW instead of DVD-ROM, and the max of 4GB of ram. They were good quality laptops then, but Dell ruined that.
If you were to get one now, I would get Sager or Asus. Sager has better customization than Asus, almost equal to dell.