Me neither. I think when they replaced my iPhone on the occasion in question, I was just very grateful to be getting a new one. I'd broken the screen all on my own and they just very nicely gave me a free replacement, well before AppleCare+ rolled out. I'll be promptly forking that settlement money back over to them in some form anyway, tbh.
I've always bought refurbished Apple products when I can and have found them totally indistinguishable from new ones (aside from the plainer box). Still doesn't get Apple off the hook re: the legality of settling warranty claims with refurbished devices, though.