A hundred bucks for a mouse is a lot of money, but after playing w/ the mouse for a few minutes, I decided it was well worth it. This mouse is so smooth and accurate - it's comfortable too... it kinda cradles your hand a little bit. The buttons are really solid and don't feel like they were loosely attached. The scroll wheel is the tits - it's a click wheel and a smooth scrolling wheel, all in one - you can change the mode by pressing down on the wheel.

The only cheesy part of the package is the stand - the rechargeable base kinda seems like a second thought as it's pretty simple, small and not very supportive. But I'd rather have the design team spending most of their time on the mouse rather than the stand.

All in all, the best mouse I've ever owned - no regrets.