LOL what? I just sold my wife's 4S for $350 back in Oct. I still see the avg going price is around $300. Unless the phone was messed up in someway your friend left some money on the table.
I just bought a used 4s for my mom from the forum here for 295 shipped (white too) so your buddy either got ripped of or his phone was in poor poor condition.
I am also going to go ahead and say it, the note 2 is too fucking big and it looks ridiculous. Its a fad that will go away, every phone now is bigger and bigger and people will realize that they dont need that big of phones to do most things.
I have a galaxy nexus and I already think its too big. My gf has the s3 and its too big too, the note 2 looks ridiculous when someone is holding it specially when a girl with small hands is using it.
I dont like the form factor of the iphone 5 and i wish we would have stoped at 4.3in which would have given us a nice ppi./size.
I am sorry but i just cant get on board with the note 2 and next year everyone else will have phablet and I might have to go the iphone route since I dont want my phone that big.
edit: also touchwiz, gross.