So bJN thinks IPS displays aren't worth the money unless you’re into professional photography and graphics and he thinks that wall mounting a display is pointless. I disagree, I disagree strongly.
Well for a start, a TN display does the same job as an IPS in the same way that a Renault Clio does the same job as Bentley Flying Spur, technically it does ..but ...well you wouldn't quite think that if you swapped from one to the other now would you.
It is worth the money, I think it's worth the money, a lot of people do and I do not do professional photography or graphical work.
It is hard to put the difference, beyond the obvious viewing angles into words exactly, but it's sure as hell there, the colours are just much more natural looking, there shouldn’t be any banding, black crush or harshness to it.
Personally I want to know I am getting the best colour accuracy and the most 'natural' display of colour that I can from my display (without going as far as the seriously expensive professional monitors, and they cost thousands not hundreds) and I want decent viewing angles, I don't want the colour shifting on me when I move my head (well I use duel monitors and look at both of them at a slight angle).
So saying they aren't worth the money is quite narrow-minded to be fair. Maybe they aren't worth it to you, but to a lot of people they are. £300-£450 isn't a huge amount of money to spend on what I would argue is the single most important part of a desktop computer and your window into it. You spend all your time looking at the monitor, it defines how you see everything ...thus it's very, very important ...and will very likely last through a number of hardware upgrades so it's cost doesn't seem to bad at all then, compared to the prices some people pay for graphics cards anyway.
It all comes down to choice, you purchase what suites you best, both in performance and budgetary terms.
And wall mounting a display can be very useful, it allows for a greater degree of control over the position of the display, it frees up desk space, and albeit not the main point of doing it but also adds security.
. Because everyone knows a screen has to be at least 42" before it warrants being hung on a wall 
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