Whadaya mean lately? Nvidia have been that way for 15 years.
Not really. Even in the time of gtx280 it was affordable even at release and it was the fastes single chip for a while.
I think they turned the GREED ENGINE on since the gtx500 serie and it was just a refreshed 400 serie.
The 680 is so insanely priced,the GK104 not even designed to be high end. But it had a better performance than expected so why not fool the customers and rip them long as they can and keep yesterdays tech in a shelf and when the customers recover financialy they sell it as futures wonder tech.
This greedy corporates holding back our technological evolution.