I walked into an Apple Store and asked for a 16 GB WiFi iPad 3. When the salesperson brought the box, he noticed that there was a bit of glue on the front under the cellophane.
The blood drained out of his face when he saw it. He looked at me and said, "Um, there's this little mark on the box. Are you okay with that? If not, I can bring you another one."
"No, it's fine," I said.
"Are you sure, because lots of customers complain about this sort of thing."
I'm not kidding, that's how the conversation went. Anyway, read into that what you want.
When I got home, I opened the iPad box with obvious trepidation. What would I find? Chinese graffiti etched into the glass with a key? Dead insects under the glass? A RIM Playbook?
I had terrifying visions of having to return endless numbers of the iPads until Apple banned me or at least slapped me across the face.
Fortunately, the iPad was fine. So far, I can't find any obvious flaws, but I'm looking hard for the less obvious ones.
Buying anything, even cantaloupes, is a gamble. You never know when you're going to get a rotten one.