No. 2500K or 3750K clocked to 4.8 GHz is more than enough for now.
Intel are not in a good position to be able to price gouge the market. There is a point that will be hit in the near year or two where an arm device with lots of ram will be worthy desktop environment. If intel tightens the screws it will just come faster. And although not a trivial task if the pain becomes way to much for the enterprise market we could see some massive efforts into x86 emulation on ARM.
Intel are not in a good position to be able to price gouge the market. There is a point that will be hit in the near year or two where an arm device with lots of ram will be worthy desktop environment. If intel tightens the screws it will just come faster. And although not a trivial task if the pain becomes way to much for the enterprise market we could see some massive efforts into x86 emulation on ARM.