If you're a gamer, I can't get enough of mine.. Performance MX.. I've worn it to hell on just about ever surface feasible..
Performance Mouse MX?
The nice feature of laser over optical (and Dark Field particularly) is that you don't really need a uniform surface. When I play FPS and RTS on my couch I can mouse just as easily on my pant leg as I can on the couch cushion or my girlfriend's face for that matter.. quite handy. The "Unifying Reciever" is nice too, I pair it with my Logitech Keyboard with the same and only use one USB slot, and with a tiny dongle to boot. 1000-1500 is hard to beat for precision.