Just for the record, the reason I decided to get a new monitor was due to my monitor having an issue with darker more contrast at the top row of thumbs, and normal in the middle, and less contrast light image at the lowest row of thumbs.
It is considered somewhat normal on monitors with TN panels (normally carried monitors on store shelves).
You are not bothered when you work on emails and html and word processor stuff, but deciding when an image is ready to print, was beginning to give me fits.

I had to slide the thumbs to the center rows. I had to move the image around in the Examiner. I was never sure!
As time went on, it got more pronounced!!
I got some very prudent advice from a very knowledgeable source  .

IPS panel... 23 inch, My problem solved...
I can't believe how stubborn/stupid I was not to have followed Mike's article on the last monitor purchase.

Fred

I looked up what I paid in 2009: £480!! The equivalent now from Eizo is less that half that with IPS and LED.
I think a large part of the difference is due to exchange rates, so if you have a Yen for a new monitor, now is the time to do it. 
Terry