The A330 is also a slightly bigger plane, both for pax and cargo capacity. It was designed to meet a growing market which wanted something a little bigger than the 767, and has ended up being slightly smaller than the later released 777, at whose heels it nips ever so slightly (the Northwest order and also the pending KLM order request, for example). Maybe that is where Boeing thinks its best competition is for the A330, because I agree that I was surprised that they shelved plans for the 764-ERX.
Cheers from LA!
It is not enough to be rude; one must also be incorrect.