Yes, you're right. "Fetish" was too weird and dismissive, but I can't edit it now.

Perhaps "irrational obsession" would be a better word.

I don't understand why so many people are obsessed with maximizing technical specifications of their computers. I want a computer that works predictably and reliably with some minimum acceptable level of performance.

Overlockers void their warranties and spend thousands of dollars to squeeze out 50% more performance than what they'd get from off-the-shelf CPUs… and for what? To play games at a slightly higher framerate, sometimes, but often just to show screenshots of benchmarking rates for bragging rights.

I view people who are obsessed with Internet connection bandwidth similarly.