Logitech.com has the Logitech MX Performance Mouse for a good price.

Pricegrabber Price : $74.99 ~ $124.99 Shipped

1. Logitech Price : $99.99
2. Use coupon code logi-pmmx-81211 to get $40 off ( Exp : 6/6 )
Final Price : $59.99 Shipped