I agree with all of you that the topic concerning this original post is misleading. Obviously some clarification is needed regarding CPU / GPU horspower relative to frame rate.
First, not all "games" are created equal. Most are heavily GPU bound (Oblivion), some are heavily CPU bound (Flight Simulator X), yet few balance their use of hardware. We know that on the GPU end of the FPS performance spectrum, Oblivion runs well on high end GPU's, but on the CPU end, Flight Simulator X demands extreme horsepower OC'd to the max, and even then FPS is just fair, regardless of what high end GPU's are plugged in.
Second, an Optometrist will tell you that the Flicker Frequency Threshold for the human eye is 48, so we rarely detect faster image rates. This is why the video industry can squeak by with 30FPS interlaced, and is also why most people don't see the 60Hz flicker in florescent lights, and won't see the flicker in a CTR at 60Hz refresh rate. For flat panel LCD monitors, this is 16.67mS response time. 1 / Time = Frequency, or 1 / 60 = 0.01667. Remember that when you increase refresh rate (60 vs 72) and/or image matrix (1024 vs 1280), you decrease FPS.
In order to determine what is suitable for your particular needs, some research into each game is required. For some gamers, the focus is on the highest possible horsepower in SLI or Crossfire cards, and for others, maximum CPU horspower OC'd to the edge of stability is the solution. Since most of us don't have unlimited budgets to just simply build a system that covers all contingencies, we must weigh our priorities as well as we can, based on the information available. This is where choosing the right hardware becomes very complicated, as we see every day in these forums.
The goal is to design a rig that can consistently render FPS that never fall below 45. Anything above 60Hz is meaningless to the human eye, although the numbers are impressive for benchmarking. I suggest that in the future, game software developers implement a simple "CPU / GPU Binding Ratio" on the retail box, (such as 30 / 70), so that we can all make more informed decisions regarding purchasing options and upgrade paths. This would help us all to identify where we need spend our hard earned money, so we can enjoy a computer which best matches our needs.