[jorvi]

Not "everyone". The G Pro Wireless is one of the most popular mouses and polls at 1KHz, and it works just fine. Polling a keyboard beyond 1KHz is utterly useless. The only time you're gonna want more fidelity is with stuff like Snap Tap, which is considered cheating and is banned.

In a similar vein, >120Hz screens are of doubtful utility. The performance gain is insignificant, considering top human reaction time to visual stimuli is ~150ms and the jump from 120Hz to 240Hz is -4.17ms, 1/36th or 2.77% improvement.

Even then, most pro FPS players also still play on 200-800 DPI when 1600 DPI and preferably even 3200 DPI is much better. Those low DPIs are purely cargo culted from the 2000s era CS Pros their .cfg, when sensors were still pretty crappy, and those players are effectively running lowgrade mouse smoothing.

Uneducated gamers are kin to uneducated audiophiles. Stop drinking the snake oil.