Isn't buying a mouse for someone as a gift kind of like buying them shoes? Everyone has different preferences and tastes, and no fancy specs will change that.
I certainly wouldn't be too pleased to get a Razer mouse, already having the original glitchy and fragile Kärna Razer BoomSlang ball mouse with terrible drivers that caused the company to go bankrupt. It was the first mouse marketed as a "gaming mouse" but clearly inferior to the optical IntelliMouse Explorer from the same year which low-sens gamers still hoard and use today... despite the Razer boasting
way better specs.
Razer themselves claim to be a "lifestyle brand" like Apple to justify their overpriced wares, a true marketing breakthrough. Thing is, true luxury brands such as Apple or Rolls Royce (who for decades merely quoted horsepower as "sufficient," or "adequate") do
not hype specs. Only the cheap brands do.
Will you really notice 8000Hz (0.125ms) over 1000Hz (1ms) if the
fastest tested LCD has 8.4ms input lag? If you can tell the difference, why aren't you using a CRT? Or for that matter a wired mouse? Sometimes specs are just for marketing to the gullible.