Look like you are unaware of the issue this issue is present since 2 years since they cheap out on the switches that being said My old mx 18 mouse worked for 10 years without any issue. I had been to their service center and was stunned as how many mice did have the issues .
I don't have time To RMA a mouse several times in a year, if you have free time on your hands you can go for it . But eventually the Warranty will end sometime after that you are alone.
Gamer nexus say it is good for 6 years. AIO Tube get harder, coolant get evaporated etc etc. you should buy a new one after 6 years or change tube coolant etc after 6 years.