AMD did the right thing by discarding Sea Islands refresh for the desktop to wait for Volcanic Islands. Everyone knew Kepler got held back on the 600 Series because the lower end models slightly out performed AMD. The 700 Series is basically what the 600 should have been the same way the 500 Series was what the 400 Series should have been.
At this point might as well wait for AMD's 8xxx and Nvidia's Maxwell 8xx, which will most likely come within 6 months after AMD drops their brand new architecture at the end of the year. This really is just a milking of the 600 Series and Titan's success in the market.