That's called e-p3nis, Mr. Evil, e-penis.
The reason to get the most expensive gear or overcook...um....or overclock it is to get the best o' the best performance or brag to your online buddies of the 1337 benchmark score your computer just got.
Of course, not everybody needs or wants the best of the best performance. Some get it because they simply want it and just want the best they can get.
The 1337 snobs are the ones who ruin the party for everyone as they bash people who don't build their computers based on
their needs.
I've seen many instances where a Joe_snob_1337 at the uber1337forums would tell someone that in order to get 1337 performance the minimum that someone would need is an overclocked water cooled quad core CPU with RAID 0 @ 15K RPM, 16GB of overclocked DDR3 RAM, overclocked quad SLI, 3000Mhz FSB mobo with OC capabilities and a Gigawatt PSU even though the OP was just asking about getting a computer to run MS Office and browse the net.
