Well probably not hardware changes full-out. But say that a new firmware for the SuperDrive comes out. Or they get a newer batch of Hard-drives that end up being better.. Or they get a shipment of a slightly newer revision of motherboards...
All slim chances, and we probably won't see any performance differences, but I'm just saying that waiting for Apple to configure your machine with the 8800 is probably a more sure-fire way to go than getting the first ones out the door and sticking an 8800 in it. Which is why I didn't go with Amazon.
Hmm.. this is a very good point (still speculation). I guess if you sat behind the Apple Executive chair, you would know the exact X amount of machines on hold for the 8800GT all waiting for a product that requires the machine to be opened to be placed into. I guess he knew this would be the second wave of units in mass going out.. Why not put an updated HW piece in there if it meant slimming out the issues.
Or perhaps this is all software related and 10.5.2.
Or perhaps... well, we're all getting the same stock machines.
Or... man, i just want my machine to get here (see attachment... again).