I'd buy one of those monoprice screens with a warranty maybe, but it's not the screen that concerns me! If you follow the threads on overclock.net, the more common failures are the ones where what I think is a power board inside the display fails and burns out. That, or it overheats, or they have issues with the power supply, or all of the above.
Oh yes, and since they're A-/B+ panels they might have uneven backlighting or some other color issue. OTOH, that happens with the other american brands too xD
This guy wins, what he's saying is dead-on.
Honestly, I probably wouldn't even buy one with a warranty, but if the only thing on your mind is pure price/performance ratio, it's pretty hard to beat the Koreans right now.