yep, unless the GTX 470 is priced at 350.00$ and the GTX 480 at 500.00$ you will not see any price cuts on the 5 series.
Well, we don't know how Fermi will perform nor do we have concrete quotes for pricing so I would expect either a ~$50 price cut or none at all, I can't see Fermi really being a budget champion, but we simply do not know.
And since there will be a major shortage at launch, that will give AMD another reason to keep prices where they are ATM. I think AMD prices are where they should be, for the performance you get you really cannot complain.
Save the HD5570 (needs to drop to compete with the HD4670; HD4670 drops to put HD4650 out of business), HD5670 (Drops to $~80 to put 9600GT out of business), HD5750 (puts HD4850/GTS250 out of business), and the HD5830 (puts HD4890 out of business).