I'm still trying to work out the point of Skylake tbh.. Why would anyone buy a 6700k over the X99 counterpart?
Doesn't take a genius to know why:
Significantly cheaper than X99
Better gaming performance at stock
Much easier to overclock
Overclocks higher on average
Runs much cooler (and thus quieter)
Higher IPC, meaning better performance in lightly threaded games
Obviously for anyone rendering video on a regular basis, X99 is superior, though the vast majority don't.