Be careful when you get your information from "some places" because a lot of "places" don't have accurate information on Apple products and they tend to have anti-Apple bias on top of that. Specifying that they die a few months out of warranty suggests that you got your information from one of those kinds of sources.
I haven't heard anything about abnormal failure rates in Apple Studio Displays. We have 2 CRT studio displays that are years out of warranty with no problems and 1 LCD studio display that had work done to it (dead pixels) in warranty.