With the holiday season coming, there should be a great deal on at least one model that will satisfy you. And many shops offer extended return/exchange policies around the holidays, just in case.
This is what I am banking on.
I own a PG279Q and I guess "won" the panel lottery. I think it's worth giving it a go as long as you're willing to send back a panel you don't think is good enough. I won't go to TN so I can't say much on the 278Q.
FWIW the reviews scared me too. Just get over that if you want it. I was happy enough with the first one I got to keep it.
Yeah the reviews scare me its like for every "Mine is perfect" there is a "mine was rubbish" Post.
How much configuration changes did you have to do after getting it out of the box? I am sure there's a guide for optimal settings somewhere.
EDIT: Thanks everyone for their input.