Talk about long in the tooth, Apple's external Thunderbolt displays were last refreshed way back in 2011 and it seems that company has finally decided to pull the plug on the ageing monitor line.
"We're discontinuing the Apple Thunderbolt Display," an Apple spokesperson confirmed to The Verge. It will be available through Apple.com, Apple's retail stores, and Apple Authorized Resellers while supplies last. There are a number of great third-party options available for Mac users."
So, if you need a second display for your Mac Pro, iMac or MacBook, your best bet is to look for a third party solution. For Apple purists, who usually need to have matching desktop and monitor combos (understandable, these are built to just work together, this is a tough choice). Apple seems to be unplugging some of its long-standing product lines like the displays and likely AirPort and Time Capsule products (when was the last time those got updated?).
The Thunderbolt ($SRT 1,199) display features 27-inch, diagonally viewable, TFT Active-Matrix LCD displays a native resolution of 2560x1440 pixels in 16.7 million colours presented in a widescreen 16:9 aspect ratio. 4K monitors today can be had for a similar price.
Source: The Verge via MacNN