> People do make smaller mice. But the downside is that they are generally cheapies, and not very robust

The last mouse I had was a white Apple Magic Mouse: still a bit on the large side, yet much smaller than the Logitech G600.

But multitouch is not as good as 12 dedicated keys for shortcuts!

> When it comes to left-handed mice, it's often easier to obtain a symmetrical mouse, and change its handidness in software

Symmetrical could do, but then I'd miss the 12 keys right by my thumb!