Sorry I haven't been replying, family was in town.
I contacted Nokia care and not at&t. I just explained to them out of the 6 other units I have access to, mine is the only one that feels "weak". I told them handing this phone off to someone to try and convince them to get one themselves wasn't going to happen in this state. That wasn't a stretch, depending on how you held it, you'd hear and feel the creak.
This replacement is still rock solid, but I may have a bigger issue. I'm going to play with both today side by side. The GPS seems to be struggling to lock on. The old one has no issue whatsoever. I am hoping I don't have to get another one, but this is a serious issue, bigger than the dust or creaking. It was a clear day yesterday and I never got gps lock.
Battery life is horrible at the moment. I'm hoping its just due to it being a brand new battery. I'd like to think that a refurb would get a new one....