You are technically correct but id say optical mice were not exactly common generally in non collegiate school settings, or general consumer or general office use surpassing the popularity of the older mice till the late 00s, though of course there will be exceptions basically depending on how wealthy an area is.

the first Razr came out in 2004. Facebook, the thing that killed MySpace, required a coledge.edu email until 2006. Apple was still selling the Puck mouse in 2000, and Logitech introduced the first laser-powered mouse the MX 1000 in 2004. The death of myspace the track ball mouse and the heyday of the Razr phone all defiantly overlapped in the mid 2000s.