This is almost exactly what I thought...you are faulting the phone because it has an extra piece of material to improve the integrity of the device. If you are upset that you can't put a in bigger battery, that is one thing. To say that the phone isn't as good as one made in china because of this point seems, well, pointless.
To briefly inject my own feelings into the endless MIF/MBN debate, I have handled about 5-6 N95s and I would say the slider is much sturdier on the MBNs. Also, you almost always get more little odds and ends in the MBN boxes (straps, soft pouches, etc). If you like the phone and it feels solid to you, it shouldn't matter where it was from -