stingstang :
They're not going to drop the prices again for a while. Now that the new generation graphics cards are settled in, new releases won't change the prices again until the next generation comes out.
I definitely don't agree with this statement. NVIDIA has released ONE card, the 680, and you're going to claim that this generation of graphics cards are settled in. Its barely pass the point of the initial surge from first release. Prices are still inflated due to the low supply and high demand. NVIDIA will surely release more cards, it would be very strange that they wouldn't. Cards like the 670 and 660ti most likely, or at least looking at the past products.
To the OP, prices will probably never be fixed. It's business, it will remain as a fluid state, when say for example when the 670 releases, AMD might have to readjust their prices again, possibly on the 7800 series. It all depends on the on their product brackets a certain segment in contrast with the competition.
I think that was the reason behind th 7900 series price drop. The 680 is starting to become more avaiable and AMD can no longer charge the premium that they were charging compared to the competition.