About the only thing that can had on this is Warranty.
Warranty. What does is cover and what does it not cover. Monitor come with a 3 year warranty, but will that cover every thing. There are some monitors brands that will not cover the back light.
Don't forget the dead/bright pixel policy where manufactures will put in a lot of terms and conditions in order to get out of fixing your monitor.
Eg. Position on the screen. If it right in the middle or the screen, the they will do some thing about it, but if it's on the edges, they might not do any thing.
Number of Dead Pixels and how close are they to each other. Some manufactures will require more than one dead pixel on the screen and they need to be with in a certain distance of each other.
How long does the dead pixel policy last?
Is there a DOA period for dead pixels? There are some monitor company that do not have DOA period when it comes to dead pixels.