Wait what? I'm all fine and dandy for advocating Korean monitors (I have one) but this is just a solid block of BS, there's a guy in the more recent pages of the club that mentioned he bought his in August and it failed recently. He only did minor overclocking, too. I'm pretty sure there are reports of them failing or having issues, especially ones that have been overclocked.
And overall I can see where this is coming from. You get a much better return policy and whatnot for 100$ more, and you don't have to ship it off to South Korea. For 450, not a bad deal. The only reason I got this Qnix was because I was tired of returning 700$ monitors left and right because of imperfections. I figured I might as well just spend much less and corner myself to get something that I will just have to live with.
However, consider the ASUS PB278Q, it's close to that price. Also, there's this ebay listing for a 500$ for a refurb Viewsonic VP2770 which is a superior monitor:
Of course that Monoprice seems to be the most convenient pick for you, so you can get that if you need to. Just beware that I have heard the minimum brightness levels on them are very high. If you need it dim, it might be an issue for you. However, at ~450, if you consider that to be "only" 130$ more, you might as well consider things close to its price range that aren't a Monoprice.