Because any gamer or mainstream user will never buy that big monitor. Only enthusiast with a big budget. I understand that you need a 30" monitor, but because of the reasons stated above, they won't lower their price.
You don't need a 2560x1600 res to do your gfx designing, you can easily get by with a cheaper 27" or buy (3) 24" screens for about 650.00$ and have 5760x 1080 res for a fraction of the cost compared to a single 30".
Nope , I don't like multiple monitors. I can't stand that space between monitors , and you would still have 1080 lines vertically.
27" monitors are 1080p ... that's not even a good upgrade from 1680x1050 (at least vertically ) plus I don't like to have oversized UI . 1080p belongs in 24"-es
My sister works for a company called Alpha-Graphics and she can get by with a 27" just fine, if you are being picky about the res then I guess you are going to need a wad of cash for that screen you need.
Not all 27" screens are 1080p, I have seen a few that are 2560 x 1440 native.
I do graphical design on multiple monitors. Granted mine are 1920x1200, so each "screen" is big enough for its own window, that way the bezels never matter, becuase I don't like them "cut" my windows, I have different windows in each screen. Once you get used to it, its so much better.
I really would have loved to have a 2560x1600 monitor 'cause I do gfx desing and 3d... but they are too costly . The lowest price I saw was $1200 , that's just ridiculous imo.
These monitors generally use H-IPS panels which are rather expensive to manufacture. I think some use S-PVA panels, but they are still much more expensive to manufacture than TN panels.
Addtionally, because of the high resolution, there are many pixels that are on the screen which uses more materials to produce.
Lastly, LCD panels are manufactured in large panes of "glass". The larger the LCD panel size, the few panels can be cut from the "glass". Additionally, defective areas must be cut around, therefore decreasing the number of LCD panels cut from the glass. The fewer the panels cut from the pane of "glass" the higher the cost per unit because there is a fixed involved to manufacture the pane of "glass".