It just got this monitor http://www.samsung.com/us/computer/monitors/LS27B970DS/ZA and side by side with TBD ( LG IPS panel ) it looks very similar, however better color because of built in calibration on Samsung ( PLS ). The TBD can get brighter but unless in very bright room should not be an issue. It's an excellent option especially if you need the inputs and don't want to loose the setup that regular monitor provide. As people argue in the macbook pro retina forums between the samsung/lg panels, on the large scale these two panel have similar traits to their smaller counter parts. Worth taking a look at.
I believe that support for other then one and only apple computer is not supporting xbox. It is higly probable I wont choose apple display until I get more then one and only TB graphic input - so is that better for apple not to sell me display or to sell me display that will support for example xbox?