Okay, either the Apple rep lied or there is something else to this.
The T-Mobile model is best opimized for T-Mobile's networks is what I heard from the Apple rep even though it works with Verizon. Is the device heavier with the CDMA version? Or does it have worse battery life because there are more 'bands' in it? There has to be some difference besides "the Verizon version is superior and we just cut out CDMA out of T-Mobile one to make it cheaper for Apple to manufacture")
The Apple rep just is reading off a script.