I never understood why apple changed this. The 23" inch cinema displays were overpriced in 2003-2006--but they were attractively designed at a time other displays were hideously cheap looking. Now I have a 23" display that I bought for 1/4 of the what I paid for an apple display back then and it is well designed and a great display.
I can only assume margins are so thin apple decided not to bother
At the time, they were pricey little suckers yet worth every penny. Many pro's loved 'em since they worked so well with OS X (no need for calibration), even on other platforms. I remember visiting a friend working on an Annie Leibovitz shoot, saw nothing but 8 30" CCFL LCD's with PowerMac G5's all lined up.
With the move to LED LCD's in the 2007 24" iMac, Apple axed their CCFL line and chose to use the LED LCD panel from their larger iMac as their sole display; lower production costs for 1 display body with the same panels already in use, easy money while appearing to appease some customers. Jobs was obsessed with the yet to be released iPhone and iOS. Although Apple's displays sold well to a wide market, from 20" displays for Mac Mini users to the coveted 30" display for pro's, apparently it wasn't enough for Jobs, who also wanted to axe the Mac Pro. In 2007 the 24" iMac was followed by the 27" around 2009 with a 27" display in 2010.
LED LCD panels are fine, but they're also [still] a divisive issue amongst photographers, graphic designers, film, etc. CCFL LCD's had more accurate color (LED LCD's tend to oversaturate which appeals to consumers - the "wow" factor - but are often unrealistic). By nature, panels can differ, so two of the same displays could have different colors and brightness levels. When one of my 2 23" CCFL LCD's had burn-in around 2009, I decided to replace both with 24" LED LCD's. The 2nd display was fine, gave it to a friend. Working on two very different displays side by side would have been daunting. Over the course of 3 years I went through ~7 displays (bad panels, many suffered from power supply issues, dead pixels, google Apple 24" LED LCD repairs and you'll be there for days).
Apple replaced them with new 27" LED LCD's and free AppleCare. I actually asked if the 23" CCFL LCD's were still available lol. It's been roughly a year and I'm noticing a defect on my left display's bottom right corner, dead pixels or such. This display is also significantly more yellow and dimmer then its right counter part.
I've been tempted to bring it in, but it's such a PITA I've just lived with it. I never had one issue with the CCFL LCD's, and although they were pricey (later came down, think I paid $1799 in 2004), I'd gladly fork it over for the quality and longevity. Since those days, Apple seems more focused on a display with short cables for their portable's. Even if a 4K or 5K display came out, based on past experience, I would hesitate buying. If Apple released a new display line such as they had, I might dive in, shows they're focused again on good displays.