[powersnail]

> why wouldn’t people use it wirelessly except to charge?

For some users, the point of a wireless mouse is to be a portable mouse. You can take it on the go with your laptop without worrying about cables. When they are at home, they don't care about cable drag, and they want the peace of mind that the mouse will always have full battery when they need to go. They leave the mouse always plugged in when they can, so they can use the mouse unplugged when they need to.

I think most modern mouses have long enough battery life now, that more people can have the peace of mind without constantly docking their mouse. If the battery lasts weeks, it feels pretty secure.