Do we all know the reason of the delay...???
Because the product is not yet ready and NV try to maintain our patience and attention to keep waiting their product using all the delay announcement.
It's amazing many ppl still waiting Fermi like a promising prophet LOL
While actually NV are busy prepare them self to sue Intel in the court.
Finally once the product launch it cost 600$ this will not push to lower the 5xxx price, and after 2 months price will drop into 400$, consider we have to waited additional 2 months for reasonable price.
Later after 3 months Overclock version will shown with a new label GTX 490 or maybe GTX 4840 LOL