Just wanted to share my experience. I purchased a "YAMAKASI CATLEAP Q270 SE LED 27" 2560X1440 WQHD DVI-D" white color from green-sum on Sept 14, 2012 for $380 w/free shipping. I received the monitor on Sept 20th 2012 (5 business days including date purchased & date received). FYI I live in a small town about 3 hrs away from the nearest large city I was very impressed with shipping. I never paid any import taxes & received a tracking number the day it was shipped DHL. Arrived on my doorstep in original monitor box covered w/two layers of bubble wrap. I was assuming that from the description that all the monitors were tested that they would come in an open-box style but the monitor was brand new with shrink plastic wrap everywhere. If green-sum tested it he did it with all the plastic wrap on. The box did look as though it had been opened but none of the accessories or monitor looked used.
There are no dead pixels which is what I was worrying about when I bought it. The only thing I kind of dislike about it is the stand is made of POS plastic. It feels very cheap. But I guess if it holds the monitor up then what more can I ask for. It swivels 360 degrees on the base so it's super easy to disconnect power/video cables that input from the side & not from the bottom like my Asus VE276Q has. Overall I'm very pleased to have a $380 monitor that would have cost me upwards of $1k for a US equivalent monitor (if one even exists).
There are reflections in the display that look like dust or scratches. The monitor was flawless. this was right after I got done taking off tons of plastic covering it.
Like I said, no dead pixels.
Just in case anyone was wondering. Monitor was covered in 2 layers of bubble wrap & shipped in this box. There was no outer box.