Guys, a replacement is a refurb. Or a return to the store. It is in no way brand new. period.
It is hit or miss, and I would say the likelihood of getting a "non-perfect" iphone is HIGHER than just returning and rebuying.
Apple is going to give you a white box iphone, inspected by apple care means nothing. They are not any more well-trained than you or I.
It is possible that your replacement iphone will truly be the customer who bought it just to check it out and then returns it, but most people who buy the iphone, love it. Those who return it, usually buy another iphone.
The replacement will usually have screen problems
--dust
--yellow tint
--digitizer issues
--video tearing
or
physical nicks/mild damage
The only way to avoid this is to return it and re-buy. I personally do not care about litle nicks b/c they are going to happen anyway. The screen is what I care about, and they are not all created equally.
You are absolutely wrong. Not all replacements are refurbs, even some replacement iphones that come out of black, white, brown, etc., box are not necessarily refurbished iphones. Apple streams new iPhones into their replacements batches.
Proof is in the details my friend. Apple keeps a strict inventory of what phones are new and what phones are not. You can look up the serial number for any iphone, refurbished or not, and it will indicate whether the unit was refurbished. I am pretty certain, at least from what I have seen, that all replacements iphone 5s are new, if not check the serial and you will see for yourself.