What I do hate, is people talking about things they have no idea about (pretty much the old and tiring "hurr durr windows sucks go apple" type of mentality).
Actually, I've been down the "ghetto hardware" road myself. Built my own PCs, in crappy-looking cases (hence the "ghetto" label), fans blasting in every direction, just to squeeze out a few extra FPS just like you said. I'm done with those days - not worth the time, not worth the hassle, not worth the abysmal resale value, not worth the endless struggle for hardware supremacy and BIOS setting optimization. Not worth it to me. If it's worth it to someone else, good for them. I'm not going to troll their overclocking forums and tell them how stupid their preferences are.
I dumped my homebuilt PC and am never looking back (still use a PC laptop at work though and have WinXP and Win7 in VMware on my Mac for those one or two Windows apps I still use).
The point is many of us here do know exactly what we're talking about - we're not talking from ignorance (unlike many of those on this forum who join simply to rage against Apple and its users).