Futurelooks have posted an article titled, My Frames Per Second Revelation.... In this article they talk about the hours and money you can spend overclocking and tweaking your system to get the most FPS in a game:

    "The pursuit of these numbers, combined with advanced benchmark results on software provided by companies like Mad Onion, a firm that produces useful benchmarking software used test and stress new hardware and pinpoint areas of needed improvement and tweaking, have gathered the necessary information for gamers and tweakers to start targeting for even more effective tweaking. This abundance of useful information has created a subculture of people that resemble a populous that is addicted to some new drug that they can't get enough of."