I want a gaming monitor with viewing movies in 3d ,so wich of these is a better option I can't afford asus that's costly here and XL2420T revised version Is not yet available here .so the price of these monitors are something like XL2411T(400$),XL242T360$,old version),AOC D2369VH. what is the real difference between BENQ monitors and the revised version of XL2420T?