I'm looking into the PX191 too, but look what I just came across...announcement for the new Samsung Syncmaster 192T. From what I can see it has a new base and bezel but all the other specs look the same. 25ms, 500:1, 170degrees. According to this site it will be avail in June for $773. Here is the link:
Syncmaster 192T announcement
Syncmaster 192T announcement