Hardware.info had a chance to review 14 different 2560×1440 displays of which all but three they could find for sale; prices ranged from $500 to $950.  That price range is interesting as all of the displays reviewed were 27" models, so the disparity is not caused by larger screens.  Gamers may want to head straight to their findings on Response Time and Input Lag but you should spend the time to read the whole round up if you are more interested in the colour accuracy.

"Most IT product categories tend to evolve rapidly, but developments in computer monitors have been decidedly slower. Although larger screens are slowly becoming more affordable, the most common resolution remains 1920×1080 pixels. Nonetheless, this year we're seeing more and more manufacturers release WQHD monitors. Hardware.Info collected 14 different models of these very impressive monitors and tested them to find out which is the best one to get."

Here are some more Display articles from around the web:

Displays