DelegateVoidFor over 10 years I've been using the #delux #m618, buying new ones about every two years, but recently I bought a #logitech #m575s and completely fallen in love with it.
Now I'm not sure I'll ever go to a mouse (computer mouse that is) again.
If at some point they stop making the #m618 mouse, I'll have to invent my own because this is the greatest mouse ever invented and I have been using it for over a decade!