i've heard you have to pay $35 when you do this.
Ya, if you return a phone that's not defective they are obligated to ding you for $35, but when you get home call customer service and they may give you a credit on your bill.
Worked for me twice.
The problem with returning a phone to Costco is that you are sort of on your own to keep your upgrade intact. I did it with my Bionic, but I actually had to call VZW while standing at the costco kiosk and give them the sales reps telephone number and name. They called the kiosk and verified the story.
that could go south fast.
I think the costco deal is really good if you want to swap for a new phone at no cost. I might stroll on down and get a razr to amuse myself with until the gnex lands "before the end of the year"
Only problem is that there is no guarantee that the costco kiosk will actually carry the Gnex (I know, I saw the $289 deal, but how hard would that be to fake?)