no doubt trend changed to smart phones, etc ... also age factor made the interest less ..
however, we are not seeing anything new in term of performance like old days i7 920 2.6 ghz oced to 4.2 ghz then i5 2500k/2600k oced to 5~5.2 GHz on Air ..
now Intel itself discouraging ocing ....... so 4th/6th gen nothing except oced 2500k/2600k with slight performance boost and few new features like usb 3.1 , saata m2 etc........