GTA V comes to mind for one. Most AAA games over the past year show gains with an i7 - see gamegpu. Those threads will come in use over the next few years. Doesn't make sense you spend that much and didn't spend an extra 100 on hyperthreading.Why wouldn't he? i7 really don't warrant the extra 100$ not unless you're running stock. And well they are K models. Who is running stock :/
Granted this is from a gamer view.