I am a speed freak. I intend to push my hardware as far as it will go without damage to the components.
Some people are value freaks.
They want the most horsepower for their buck and are concerned about cost. While cost is an issue sometimes for me, I opted for the PII-333 for my overclocked gaming rig. Now, this took some serious hunting around to find a processor that would run stable at 103MHz at a 5X multiplier. I went through no less than 4 CPUs to find the right one. There are many resources on the net for finding overclockable CPUs.