How durable/longevity of your Razer Mice?

Hi all, just want to share my experience with Razer product, I had purchased Razer DeathAdder Black Edition in October 2014, use until now the condition is still good! Now my mouse age are already about 7 years old ! <3 during many years of usage, the mouse scroll is actually problematic, but it just auto fixed afterward!! before purchase this mouse, I always get random mouse in shop around SGD10, and it only lasts like 2-3months till the problem arise. it proven the price ratio of razer product, it is worth of money and quality guaranteed. Thanks again to Razer to making a lot of great product !! :D The nostalgia razer mice 2014 packaging!! Photo in new condition, October 2014. This is the photo in June2021.