Hmm, I already own both NWN 2 and the Mask of the Betrayer as do most people on these boards (at least I would guess so). I lost all interest in the Mysteries of Westgate the day I learned that it will require online authentication every time you play. I have no problem with requiring online registration to enable play, but I am not going to stand for having to do that every time, so I am not buying that.
Instead, I will wait for a proper second expansion pack... which I hope will come eventually.
I don't mind online authentication as such, though I think those who do have a legitimate point. My problem with the NWN premium modules is that apparently they are locked to the version of NWN you have installed when you first use them. I got NWN and its expansions on a single disc with the NWN2 Collector's Edition, but I can't use it to play my premium modules - instead, I'll have to re-install from my original 5 discs. Lucky I kept them, I guess. I wonder if this will also apply to Mysteries of Westgate? If it does, and people want NWN2: Gold, they'd better make sure they get it before Westgate is released.