I don't understand this. The u2410, while it is 16:10, still has less vertical real estate than a 16:9 u2711. I recently upgraded from 24" 1920x1200 to 27" 2560x1440 myself, and the difference is significant.
My main issue with 2560x1440 is that the pixel pitch is pretty small, and I do occasionally need to zoom in to read some web sites comfortably. For gaming however the pixel pitch is terrific, and I think games look better on the 27" screen than they ever did on the 24".
Yes, the 2711 has more pixels than the 2410, but the physical area of the displays are very close. I used a pair of u2410's before upgrading to the 2711's; For me the colors and the performance are nearly identical, but the extra pixels help me with my work, so it made sense for me to upgrade from a productivity standpoint.
I'm not saying it's bad display, all I am saying is that if all you do is play games on your system you'd be just as happy with the 2410 and you would save yourself a chunk of change.
On the other side of the coin if you need pixels
and size then the u3011 is a better option ... 16:10 display delivers an extra 10%, or so, more pixels in the y axis and is easier on the eyes.
None of this makes the u2711 a bad deal at $750, but there are other things to consider. If I were a gamer I would rather have 3 u2410s for $1500 than a pair of 2711's . For my CAD work I would consider saving my pennies for another month and spend an extra $500 for the u3011's.