Hey buddy, welcome to the ROG forums
🙂 I don't mean to scare you off, but it's worth keeping in mind that a good number of people are facing problems with their screens, and a lot of them, myself included, did not start noticing this problem until after a while of owning the laptop. Check out these threads for more info:
http://rog.asus.com/forum/showthread.php?23509-Horizontal-Lines-plague-all-BBK5&country=&status=http://rog.asus.com/forum/showthread.php?23419-I-m-the-only-one-left-annoyed-with-flicker-amp-black-...http://rog.asus.com/forum/showthread.php?20249-Weird-faint-screen-lines-over-everything-on-G75WV-BBK...My advice is to download a few of the pics that people have reported seeing the problem on, put them on a usb stick, and then try them out on the display model in the store or on the laptop itself before taking it out of the store! As far as I know, the problem is prevalent on the 1920x1080 screen models.
Ask the store for their return and exchange policies, in case this problem arises, or in case you're not 100% satisfied with the purchase.
I bought mine around the end of May, and apart from this very annoying problem, I've been really impressed with the performance of this laptop! It runs almost every game I want, and you usually don't have to sacrifice graphics for performance (I choose to turn off a couple options here and there in exchange for a solid 60fps in some games). I have the 670m btw, and it's awesome. I know it doesn't run as cool as the 660m, but you probably won't notice much since the cooling system is so good! This is, ironically, the only laptop that I've been able to consistently use while it's on my lap, even while gaming!
Anyway, weigh your options well, and good luck! Let us know how it goes and feel free to ask more questions
🙂